Home / 31,989.54-47,926.85-18,834.74

Finding the Fourth Proportional to 31,989.54, 47,926.85 and 18,834.74

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Solution

The fourth proportional to 31,989.54, 47,926.85 and 18,834.74 is: 28,218.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,989.54 : 47,926.85 = 18,834.74 : x
  2. Step 2: Convert to fraction form
    31,989.54/47,926.85 = 18,834.74/x
  3. Step 3: Cross multiply
    31,989.54x = 47,926.85 × 18,834.74
  4. Step 4: Simplify right side
    31,989.54x = 902,689,758.77
  5. Step 5: Solve for x
    x = 902,689,758.77/31,989.54
  6. Step 6: Final answer
    x = 28,218.28

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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.