Home / 20,251.12-30,404.66-13,995.72

Finding the Fourth Proportional to 20,251.12, 30,404.66 and 13,995.72

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Solution

The fourth proportional to 20,251.12, 30,404.66 and 13,995.72 is: 21,012.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.12 : 30,404.66 = 13,995.72 : x
  2. Step 2: Convert to fraction form
    20,251.12/30,404.66 = 13,995.72/x
  3. Step 3: Cross multiply
    20,251.12x = 30,404.66 × 13,995.72
  4. Step 4: Simplify right side
    20,251.12x = 425,535,108.06
  5. Step 5: Solve for x
    x = 425,535,108.06/20,251.12
  6. Step 6: Final answer
    x = 21,012.92

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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.