Home / 20,177.68-30,269.34-5,387.08

Finding the Fourth Proportional to 20,177.68, 30,269.34 and 5,387.08

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Solution

The fourth proportional to 20,177.68, 30,269.34 and 5,387.08 is: 8,081.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.68 : 30,269.34 = 5,387.08 : x
  2. Step 2: Convert to fraction form
    20,177.68/30,269.34 = 5,387.08/x
  3. Step 3: Cross multiply
    20,177.68x = 30,269.34 × 5,387.08
  4. Step 4: Simplify right side
    20,177.68x = 163,063,356.13
  5. Step 5: Solve for x
    x = 163,063,356.13/20,177.68
  6. Step 6: Final answer
    x = 8,081.37

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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.