Home / 22,690.32-31,253.99-15,872.28

Finding the Fourth Proportional to 22,690.32, 31,253.99 and 15,872.28

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Solution

The fourth proportional to 22,690.32, 31,253.99 and 15,872.28 is: 21,862.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,690.32 : 31,253.99 = 15,872.28 : x
  2. Step 2: Convert to fraction form
    22,690.32/31,253.99 = 15,872.28/x
  3. Step 3: Cross multiply
    22,690.32x = 31,253.99 × 15,872.28
  4. Step 4: Simplify right side
    22,690.32x = 496,072,001.04
  5. Step 5: Solve for x
    x = 496,072,001.04/22,690.32
  6. Step 6: Final answer
    x = 21,862.72

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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.