Home / 38,868.09-58,310.64-12,572.45

Finding the Fourth Proportional to 38,868.09, 58,310.64 and 12,572.45

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Solution

The fourth proportional to 38,868.09, 58,310.64 and 12,572.45 is: 18,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,868.09 : 58,310.64 = 12,572.45 : x
  2. Step 2: Convert to fraction form
    38,868.09/58,310.64 = 12,572.45/x
  3. Step 3: Cross multiply
    38,868.09x = 58,310.64 × 12,572.45
  4. Step 4: Simplify right side
    38,868.09x = 733,107,543.01
  5. Step 5: Solve for x
    x = 733,107,543.01/38,868.09
  6. Step 6: Final answer
    x = 18,861.43

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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.