Home / 38,141.85-52,638.87-21,151.43

Finding the Fourth Proportional to 38,141.85, 52,638.87 and 21,151.43

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Solution

The fourth proportional to 38,141.85, 52,638.87 and 21,151.43 is: 29,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,141.85 : 52,638.87 = 21,151.43 : x
  2. Step 2: Convert to fraction form
    38,141.85/52,638.87 = 21,151.43/x
  3. Step 3: Cross multiply
    38,141.85x = 52,638.87 × 21,151.43
  4. Step 4: Simplify right side
    38,141.85x = 1,113,387,110.89
  5. Step 5: Solve for x
    x = 1,113,387,110.89/38,141.85
  6. Step 6: Final answer
    x = 29,190.70

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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.