Home / 38,581.90-57,877.14-12,280.54

Finding the Fourth Proportional to 38,581.90, 57,877.14 and 12,280.54

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Solution

The fourth proportional to 38,581.90, 57,877.14 and 12,280.54 is: 18,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,581.90 : 57,877.14 = 12,280.54 : x
  2. Step 2: Convert to fraction form
    38,581.90/57,877.14 = 12,280.54/x
  3. Step 3: Cross multiply
    38,581.90x = 57,877.14 × 12,280.54
  4. Step 4: Simplify right side
    38,581.90x = 710,762,532.86
  5. Step 5: Solve for x
    x = 710,762,532.86/38,581.90
  6. Step 6: Final answer
    x = 18,422.18

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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.