Home / 31,981.47-47,972.33-9,794.76

Finding the Fourth Proportional to 31,981.47, 47,972.33 and 9,794.76

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Solution

The fourth proportional to 31,981.47, 47,972.33 and 9,794.76 is: 14,692.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.47 : 47,972.33 = 9,794.76 : x
  2. Step 2: Convert to fraction form
    31,981.47/47,972.33 = 9,794.76/x
  3. Step 3: Cross multiply
    31,981.47x = 47,972.33 × 9,794.76
  4. Step 4: Simplify right side
    31,981.47x = 469,877,410.02
  5. Step 5: Solve for x
    x = 469,877,410.02/31,981.47
  6. Step 6: Final answer
    x = 14,692.18

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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.