Home / 28,974,454.29-39,985,065.17-15,921,716.58

Finding the Fourth Proportional to 28,974,454.29, 39,985,065.17 and 15,921,716.58

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Solution

The fourth proportional to 28,974,454.29, 39,985,065.17 and 15,921,716.58 is: 21,972,143.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,974,454.29 : 39,985,065.17 = 15,921,716.58 : x
  2. Step 2: Convert to fraction form
    28,974,454.29/39,985,065.17 = 15,921,716.58/x
  3. Step 3: Cross multiply
    28,974,454.29x = 39,985,065.17 × 15,921,716.58
  4. Step 4: Simplify right side
    28,974,454.29x = 636,630,874,989,960.88
  5. Step 5: Solve for x
    x = 636,630,874,989,960.88/28,974,454.29
  6. Step 6: Final answer
    x = 21,972,143.76

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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.