Home / 25,862.28-35,689.17-15,787.09

Finding the Fourth Proportional to 25,862.28, 35,689.17 and 15,787.09

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Solution

The fourth proportional to 25,862.28, 35,689.17 and 15,787.09 is: 21,785.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,862.28 : 35,689.17 = 15,787.09 : x
  2. Step 2: Convert to fraction form
    25,862.28/35,689.17 = 15,787.09/x
  3. Step 3: Cross multiply
    25,862.28x = 35,689.17 × 15,787.09
  4. Step 4: Simplify right side
    25,862.28x = 563,428,138.82
  5. Step 5: Solve for x
    x = 563,428,138.82/25,862.28
  6. Step 6: Final answer
    x = 21,785.71

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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.