Home / 38,248.40-57,249.82-20,434.55

Finding the Fourth Proportional to 38,248.40, 57,249.82 and 20,434.55

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Solution

The fourth proportional to 38,248.40, 57,249.82 and 20,434.55 is: 30,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,248.40 : 57,249.82 = 20,434.55 : x
  2. Step 2: Convert to fraction form
    38,248.40/57,249.82 = 20,434.55/x
  3. Step 3: Cross multiply
    38,248.40x = 57,249.82 × 20,434.55
  4. Step 4: Simplify right side
    38,248.40x = 1,169,874,048.58
  5. Step 5: Solve for x
    x = 1,169,874,048.58/38,248.40
  6. Step 6: Final answer
    x = 30,586.22

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1.5x scale

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.