Home / 38,489.80-57,722.70-15,123.40

Finding the Fourth Proportional to 38,489.80, 57,722.70 and 15,123.40

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Solution

The fourth proportional to 38,489.80, 57,722.70 and 15,123.40 is: 22,680.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,489.80 : 57,722.70 = 15,123.40 : x
  2. Step 2: Convert to fraction form
    38,489.80/57,722.70 = 15,123.40/x
  3. Step 3: Cross multiply
    38,489.80x = 57,722.70 × 15,123.40
  4. Step 4: Simplify right side
    38,489.80x = 872,963,481.18
  5. Step 5: Solve for x
    x = 872,963,481.18/38,489.80
  6. Step 6: Final answer
    x = 22,680.38

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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.