Home / 20,165.29-30,249.38-5,374.13

Finding the Fourth Proportional to 20,165.29, 30,249.38 and 5,374.13

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Solution

The fourth proportional to 20,165.29, 30,249.38 and 5,374.13 is: 8,061.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.29 : 30,249.38 = 5,374.13 : x
  2. Step 2: Convert to fraction form
    20,165.29/30,249.38 = 5,374.13/x
  3. Step 3: Cross multiply
    20,165.29x = 30,249.38 × 5,374.13
  4. Step 4: Simplify right side
    20,165.29x = 162,564,073.67
  5. Step 5: Solve for x
    x = 162,564,073.67/20,165.29
  6. Step 6: Final answer
    x = 8,061.58

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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.