Home / 27,139.60-37,442.10-15,807.16

Finding the Fourth Proportional to 27,139.60, 37,442.10 and 15,807.16

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Solution

The fourth proportional to 27,139.60, 37,442.10 and 15,807.16 is: 21,807.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,139.60 : 37,442.10 = 15,807.16 : x
  2. Step 2: Convert to fraction form
    27,139.60/37,442.10 = 15,807.16/x
  3. Step 3: Cross multiply
    27,139.60x = 37,442.10 × 15,807.16
  4. Step 4: Simplify right side
    27,139.60x = 591,853,265.44
  5. Step 5: Solve for x
    x = 591,853,265.44/27,139.60
  6. Step 6: Final answer
    x = 21,807.74

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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.