Home / 20,014.38-27,612.55-15,416.55

Finding the Fourth Proportional to 20,014.38, 27,612.55 and 15,416.55

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Solution

The fourth proportional to 20,014.38, 27,612.55 and 15,416.55 is: 21,269.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,014.38 : 27,612.55 = 15,416.55 : x
  2. Step 2: Convert to fraction form
    20,014.38/27,612.55 = 15,416.55/x
  3. Step 3: Cross multiply
    20,014.38x = 27,612.55 × 15,416.55
  4. Step 4: Simplify right side
    20,014.38x = 425,690,267.92
  5. Step 5: Solve for x
    x = 425,690,267.92/20,014.38
  6. Step 6: Final answer
    x = 21,269.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.