Home / 40,423.19-55,380.03-38,908.08

Finding the Fourth Proportional to 40,423.19, 55,380.03 and 38,908.08

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Solution

The fourth proportional to 40,423.19, 55,380.03 and 38,908.08 is: 53,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,423.19 : 55,380.03 = 38,908.08 : x
  2. Step 2: Convert to fraction form
    40,423.19/55,380.03 = 38,908.08/x
  3. Step 3: Cross multiply
    40,423.19x = 55,380.03 × 38,908.08
  4. Step 4: Simplify right side
    40,423.19x = 2,154,730,360.74
  5. Step 5: Solve for x
    x = 2,154,730,360.74/40,423.19
  6. Step 6: Final answer
    x = 53,304.32

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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.