Home / 38,691.21-53,389.85-22,774.71

Finding the Fourth Proportional to 38,691.21, 53,389.85 and 22,774.71

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Solution

The fourth proportional to 38,691.21, 53,389.85 and 22,774.71 is: 31,426.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,691.21 : 53,389.85 = 22,774.71 : x
  2. Step 2: Convert to fraction form
    38,691.21/53,389.85 = 22,774.71/x
  3. Step 3: Cross multiply
    38,691.21x = 53,389.85 × 22,774.71
  4. Step 4: Simplify right side
    38,691.21x = 1,215,938,350.69
  5. Step 5: Solve for x
    x = 1,215,938,350.69/38,691.21
  6. Step 6: Final answer
    x = 31,426.73

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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.