Home / 38,660.28-57,989.34-12,366.60

Finding the Fourth Proportional to 38,660.28, 57,989.34 and 12,366.60

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Solution

The fourth proportional to 38,660.28, 57,989.34 and 12,366.60 is: 18,549.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.28 : 57,989.34 = 12,366.60 : x
  2. Step 2: Convert to fraction form
    38,660.28/57,989.34 = 12,366.60/x
  3. Step 3: Cross multiply
    38,660.28x = 57,989.34 × 12,366.60
  4. Step 4: Simplify right side
    38,660.28x = 717,130,972.04
  5. Step 5: Solve for x
    x = 717,130,972.04/38,660.28
  6. Step 6: Final answer
    x = 18,549.55

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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.