Home / 38,713.20-53,362.50-29,138.70

Finding the Fourth Proportional to 38,713.20, 53,362.50 and 29,138.70

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Solution

The fourth proportional to 38,713.20, 53,362.50 and 29,138.70 is: 40,164.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,713.20 : 53,362.50 = 29,138.70 : x
  2. Step 2: Convert to fraction form
    38,713.20/53,362.50 = 29,138.70/x
  3. Step 3: Cross multiply
    38,713.20x = 53,362.50 × 29,138.70
  4. Step 4: Simplify right side
    38,713.20x = 1,554,913,878.75
  5. Step 5: Solve for x
    x = 1,554,913,878.75/38,713.20
  6. Step 6: Final answer
    x = 40,164.95

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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.