Home / 27,816.20-38,386.10-15,069.09

Finding the Fourth Proportional to 27,816.20, 38,386.10 and 15,069.09

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Solution

The fourth proportional to 27,816.20, 38,386.10 and 15,069.09 is: 20,795.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,816.20 : 38,386.10 = 15,069.09 : x
  2. Step 2: Convert to fraction form
    27,816.20/38,386.10 = 15,069.09/x
  3. Step 3: Cross multiply
    27,816.20x = 38,386.10 × 15,069.09
  4. Step 4: Simplify right side
    27,816.20x = 578,443,595.65
  5. Step 5: Solve for x
    x = 578,443,595.65/27,816.20
  6. Step 6: Final answer
    x = 20,795.21

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Double scale
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Similar ratio
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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.