Home / 38,428.32-57,632.76-12,119.52

Finding the Fourth Proportional to 38,428.32, 57,632.76 and 12,119.52

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Solution

The fourth proportional to 38,428.32, 57,632.76 and 12,119.52 is: 18,176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428.32 : 57,632.76 = 12,119.52 : x
  2. Step 2: Convert to fraction form
    38,428.32/57,632.76 = 12,119.52/x
  3. Step 3: Cross multiply
    38,428.32x = 57,632.76 × 12,119.52
  4. Step 4: Simplify right side
    38,428.32x = 698,481,387.48
  5. Step 5: Solve for x
    x = 698,481,387.48/38,428.32
  6. Step 6: Final answer
    x = 18,176.21

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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.