Home / 20,134.08-30,156.96-14,272.92

Finding the Fourth Proportional to 20,134.08, 30,156.96 and 14,272.92

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Solution

The fourth proportional to 20,134.08, 30,156.96 and 14,272.92 is: 21,378.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.08 : 30,156.96 = 14,272.92 : x
  2. Step 2: Convert to fraction form
    20,134.08/30,156.96 = 14,272.92/x
  3. Step 3: Cross multiply
    20,134.08x = 30,156.96 × 14,272.92
  4. Step 4: Simplify right side
    20,134.08x = 430,427,877.52
  5. Step 5: Solve for x
    x = 430,427,877.52/20,134.08
  6. Step 6: Final answer
    x = 21,378.08

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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.