Home / 22,691.32-31,255.36-15,873.28

Finding the Fourth Proportional to 22,691.32, 31,255.36 and 15,873.28

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Solution

The fourth proportional to 22,691.32, 31,255.36 and 15,873.28 is: 21,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.32 : 31,255.36 = 15,873.28 : x
  2. Step 2: Convert to fraction form
    22,691.32/31,255.36 = 15,873.28/x
  3. Step 3: Cross multiply
    22,691.32x = 31,255.36 × 15,873.28
  4. Step 4: Simplify right side
    22,691.32x = 496,125,080.78
  5. Step 5: Solve for x
    x = 496,125,080.78/22,691.32
  6. Step 6: Final answer
    x = 21,864.09

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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.