Home / 31,711.30-47,572.35-10,929.94

Finding the Fourth Proportional to 31,711.30, 47,572.35 and 10,929.94

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Solution

The fourth proportional to 31,711.30, 47,572.35 and 10,929.94 is: 16,396.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.30 : 47,572.35 = 10,929.94 : x
  2. Step 2: Convert to fraction form
    31,711.30/47,572.35 = 10,929.94/x
  3. Step 3: Cross multiply
    31,711.30x = 47,572.35 × 10,929.94
  4. Step 4: Simplify right side
    31,711.30x = 519,962,771.24
  5. Step 5: Solve for x
    x = 519,962,771.24/31,711.30
  6. Step 6: Final answer
    x = 16,396.77

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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.