Home / 38,470.23-57,699.56-12,171.55

Finding the Fourth Proportional to 38,470.23, 57,699.56 and 12,171.55

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Solution

The fourth proportional to 38,470.23, 57,699.56 and 12,171.55 is: 18,255.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,470.23 : 57,699.56 = 12,171.55 : x
  2. Step 2: Convert to fraction form
    38,470.23/57,699.56 = 12,171.55/x
  3. Step 3: Cross multiply
    38,470.23x = 57,699.56 × 12,171.55
  4. Step 4: Simplify right side
    38,470.23x = 702,293,079.52
  5. Step 5: Solve for x
    x = 702,293,079.52/38,470.23
  6. Step 6: Final answer
    x = 18,255.49

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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.