Home / 20,649.13-30,956.14-8,177.93

Finding the Fourth Proportional to 20,649.13, 30,956.14 and 8,177.93

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Solution

The fourth proportional to 20,649.13, 30,956.14 and 8,177.93 is: 12,259.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.13 : 30,956.14 = 8,177.93 : x
  2. Step 2: Convert to fraction form
    20,649.13/30,956.14 = 8,177.93/x
  3. Step 3: Cross multiply
    20,649.13x = 30,956.14 × 8,177.93
  4. Step 4: Simplify right side
    20,649.13x = 253,157,117.52
  5. Step 5: Solve for x
    x = 253,157,117.52/20,649.13
  6. Step 6: Final answer
    x = 12,259.94

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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.