Home / 19,425.75-29,139.26-5,385.93

Finding the Fourth Proportional to 19,425.75, 29,139.26 and 5,385.93

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Solution

The fourth proportional to 19,425.75, 29,139.26 and 5,385.93 is: 8,079.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,425.75 : 29,139.26 = 5,385.93 : x
  2. Step 2: Convert to fraction form
    19,425.75/29,139.26 = 5,385.93/x
  3. Step 3: Cross multiply
    19,425.75x = 29,139.26 × 5,385.93
  4. Step 4: Simplify right side
    19,425.75x = 156,941,987.68
  5. Step 5: Solve for x
    x = 156,941,987.68/19,425.75
  6. Step 6: Final answer
    x = 8,079.07

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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.