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Finding the Fourth Proportional to 27,507.65, 37,961.45 and 15,570.73

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Solution

The fourth proportional to 27,507.65, 37,961.45 and 15,570.73 is: 21,488.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,507.65 : 37,961.45 = 15,570.73 : x
  2. Step 2: Convert to fraction form
    27,507.65/37,961.45 = 15,570.73/x
  3. Step 3: Cross multiply
    27,507.65x = 37,961.45 × 15,570.73
  4. Step 4: Simplify right side
    27,507.65x = 591,087,432.38
  5. Step 5: Solve for x
    x = 591,087,432.38/27,507.65
  6. Step 6: Final answer
    x = 21,488.11

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Half scale
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Double scale
Find fourth proportional to 27,508.65, 37,962.83 and 15,571.73
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.