Home / 38,155.50-52,657.83-21,391.74

Finding the Fourth Proportional to 38,155.50, 52,657.83 and 21,391.74

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Solution

The fourth proportional to 38,155.50, 52,657.83 and 21,391.74 is: 29,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,155.50 : 52,657.83 = 21,391.74 : x
  2. Step 2: Convert to fraction form
    38,155.50/52,657.83 = 21,391.74/x
  3. Step 3: Cross multiply
    38,155.50x = 52,657.83 × 21,391.74
  4. Step 4: Simplify right side
    38,155.50x = 1,126,442,608.32
  5. Step 5: Solve for x
    x = 1,126,442,608.32/38,155.50
  6. Step 6: Final answer
    x = 29,522.42

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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.