Home / 31,981.83-47,972.76-11,200.47

Finding the Fourth Proportional to 31,981.83, 47,972.76 and 11,200.47

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Solution

The fourth proportional to 31,981.83, 47,972.76 and 11,200.47 is: 16,800.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.83 : 47,972.76 = 11,200.47 : x
  2. Step 2: Convert to fraction form
    31,981.83/47,972.76 = 11,200.47/x
  3. Step 3: Cross multiply
    31,981.83x = 47,972.76 × 11,200.47
  4. Step 4: Simplify right side
    31,981.83x = 537,317,459.20
  5. Step 5: Solve for x
    x = 537,317,459.20/31,981.83
  6. Step 6: Final answer
    x = 16,800.71

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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.