Home / 23,185.70-31,995.78-15,227.45

Finding the Fourth Proportional to 23,185.70, 31,995.78 and 15,227.45

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Solution

The fourth proportional to 23,185.70, 31,995.78 and 15,227.45 is: 21,013.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,185.70 : 31,995.78 = 15,227.45 : x
  2. Step 2: Convert to fraction form
    23,185.70/31,995.78 = 15,227.45/x
  3. Step 3: Cross multiply
    23,185.70x = 31,995.78 × 15,227.45
  4. Step 4: Simplify right side
    23,185.70x = 487,214,140.16
  5. Step 5: Solve for x
    x = 487,214,140.16/23,185.70
  6. Step 6: Final answer
    x = 21,013.56

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Half scale
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Double scale
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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.