Home / 38,461.20-57,724.20-15,104.40

Finding the Fourth Proportional to 38,461.20, 57,724.20 and 15,104.40

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Solution

The fourth proportional to 38,461.20, 57,724.20 and 15,104.40 is: 22,669.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,461.20 : 57,724.20 = 15,104.40 : x
  2. Step 2: Convert to fraction form
    38,461.20/57,724.20 = 15,104.40/x
  3. Step 3: Cross multiply
    38,461.20x = 57,724.20 × 15,104.40
  4. Step 4: Simplify right side
    38,461.20x = 871,889,406.48
  5. Step 5: Solve for x
    x = 871,889,406.48/38,461.20
  6. Step 6: Final answer
    x = 22,669.32

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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.