Home / 38,359.70-57,539.69-13,399.65

Finding the Fourth Proportional to 38,359.70, 57,539.69 and 13,399.65

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Solution

The fourth proportional to 38,359.70, 57,539.69 and 13,399.65 is: 20,099.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,359.70 : 57,539.69 = 13,399.65 : x
  2. Step 2: Convert to fraction form
    38,359.70/57,539.69 = 13,399.65/x
  3. Step 3: Cross multiply
    38,359.70x = 57,539.69 × 13,399.65
  4. Step 4: Simplify right side
    38,359.70x = 771,011,640.11
  5. Step 5: Solve for x
    x = 771,011,640.11/38,359.70
  6. Step 6: Final answer
    x = 20,099.52

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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.