Home / 38,381.45-52,965.60-21,385.62

Finding the Fourth Proportional to 38,381.45, 52,965.60 and 21,385.62

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Solution

The fourth proportional to 38,381.45, 52,965.60 and 21,385.62 is: 29,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,381.45 : 52,965.60 = 21,385.62 : x
  2. Step 2: Convert to fraction form
    38,381.45/52,965.60 = 21,385.62/x
  3. Step 3: Cross multiply
    38,381.45x = 52,965.60 × 21,385.62
  4. Step 4: Simplify right side
    38,381.45x = 1,132,702,114.48
  5. Step 5: Solve for x
    x = 1,132,702,114.48/38,381.45
  6. Step 6: Final answer
    x = 29,511.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.