Home / 28,790,061.28-39,730,286.40-15,737,371.84

Finding the Fourth Proportional to 28,790,061.28, 39,730,286.40 and 15,737,371.84

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Solution

The fourth proportional to 28,790,061.28, 39,730,286.40 and 15,737,371.84 is: 21,717,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790,061.28 : 39,730,286.40 = 15,737,371.84 : x
  2. Step 2: Convert to fraction form
    28,790,061.28/39,730,286.40 = 15,737,371.84/x
  3. Step 3: Cross multiply
    28,790,061.28x = 39,730,286.40 × 15,737,371.84
  4. Step 4: Simplify right side
    28,790,061.28x = 625,250,290,386,495
  5. Step 5: Solve for x
    x = 625,250,290,386,495/28,790,061.28
  6. Step 6: Final answer
    x = 21,717,574.14

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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.