Home / 42,911.70-64,375.01-14,445.95

Finding the Fourth Proportional to 42,911.70, 64,375.01 and 14,445.95

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Solution

The fourth proportional to 42,911.70, 64,375.01 and 14,445.95 is: 21,671.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,911.70 : 64,375.01 = 14,445.95 : x
  2. Step 2: Convert to fraction form
    42,911.70/64,375.01 = 14,445.95/x
  3. Step 3: Cross multiply
    42,911.70x = 64,375.01 × 14,445.95
  4. Step 4: Simplify right side
    42,911.70x = 929,957,781.60
  5. Step 5: Solve for x
    x = 929,957,781.60/42,911.70
  6. Step 6: Final answer
    x = 21,671.43

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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.