Home / 38,380.06-57,463.80-19,619.72

Finding the Fourth Proportional to 38,380.06, 57,463.80 and 19,619.72

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Solution

The fourth proportional to 38,380.06, 57,463.80 and 19,619.72 is: 29,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,380.06 : 57,463.80 = 19,619.72 : x
  2. Step 2: Convert to fraction form
    38,380.06/57,463.80 = 19,619.72/x
  3. Step 3: Cross multiply
    38,380.06x = 57,463.80 × 19,619.72
  4. Step 4: Simplify right side
    38,380.06x = 1,127,423,666.14
  5. Step 5: Solve for x
    x = 1,127,423,666.14/38,380.06
  6. Step 6: Final answer
    x = 29,375.25

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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.