Home / 20,127.27-30,191.71-5,134.77

Finding the Fourth Proportional to 20,127.27, 30,191.71 and 5,134.77

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Solution

The fourth proportional to 20,127.27, 30,191.71 and 5,134.77 is: 7,702.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,127.27 : 30,191.71 = 5,134.77 : x
  2. Step 2: Convert to fraction form
    20,127.27/30,191.71 = 5,134.77/x
  3. Step 3: Cross multiply
    20,127.27x = 30,191.71 × 5,134.77
  4. Step 4: Simplify right side
    20,127.27x = 155,027,486.76
  5. Step 5: Solve for x
    x = 155,027,486.76/20,127.27
  6. Step 6: Final answer
    x = 7,702.36

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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.