Home / 21,294,842.70-31,942,264.05-15,248,225.10

Finding the Fourth Proportional to 21,294,842.70, 31,942,264.05 and 15,248,225.10

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Solution

The fourth proportional to 21,294,842.70, 31,942,264.05 and 15,248,225.10 is: 22,872,337.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,842.70 : 31,942,264.05 = 15,248,225.10 : x
  2. Step 2: Convert to fraction form
    21,294,842.70/31,942,264.05 = 15,248,225.10/x
  3. Step 3: Cross multiply
    21,294,842.70x = 31,942,264.05 × 15,248,225.10
  4. Step 4: Simplify right side
    21,294,842.70x = 487,062,832,438,037.62
  5. Step 5: Solve for x
    x = 487,062,832,438,037.62/21,294,842.70
  6. Step 6: Final answer
    x = 22,872,337.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.