Home / 38,319.68-57,470.11-13,356.09

Finding the Fourth Proportional to 38,319.68, 57,470.11 and 13,356.09

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Solution

The fourth proportional to 38,319.68, 57,470.11 and 13,356.09 is: 20,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,319.68 : 57,470.11 = 13,356.09 : x
  2. Step 2: Convert to fraction form
    38,319.68/57,470.11 = 13,356.09/x
  3. Step 3: Cross multiply
    38,319.68x = 57,470.11 × 13,356.09
  4. Step 4: Simplify right side
    38,319.68x = 767,575,928.08
  5. Step 5: Solve for x
    x = 767,575,928.08/38,319.68
  6. Step 6: Final answer
    x = 20,030.85

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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.