Home / 40,423.28-55,380.16-38,908.17

Finding the Fourth Proportional to 40,423.28, 55,380.16 and 38,908.17

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Solution

The fourth proportional to 40,423.28, 55,380.16 and 38,908.17 is: 53,304.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,423.28 : 55,380.16 = 38,908.17 : x
  2. Step 2: Convert to fraction form
    40,423.28/55,380.16 = 38,908.17/x
  3. Step 3: Cross multiply
    40,423.28x = 55,380.16 × 38,908.17
  4. Step 4: Simplify right side
    40,423.28x = 2,154,740,679.91
  5. Step 5: Solve for x
    x = 2,154,740,679.91/40,423.28
  6. Step 6: Final answer
    x = 53,304.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.