Home / 38,425.20-53,025.72-21,429.96

Finding the Fourth Proportional to 38,425.20, 53,025.72 and 21,429.96

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Solution

The fourth proportional to 38,425.20, 53,025.72 and 21,429.96 is: 29,572.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,425.20 : 53,025.72 = 21,429.96 : x
  2. Step 2: Convert to fraction form
    38,425.20/53,025.72 = 21,429.96/x
  3. Step 3: Cross multiply
    38,425.20x = 53,025.72 × 21,429.96
  4. Step 4: Simplify right side
    38,425.20x = 1,136,339,058.57
  5. Step 5: Solve for x
    x = 1,136,339,058.57/38,425.20
  6. Step 6: Final answer
    x = 29,572.76

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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.