Home / 40,470.60-55,785.60-30,384.48

Finding the Fourth Proportional to 40,470.60, 55,785.60 and 30,384.48

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Solution

The fourth proportional to 40,470.60, 55,785.60 and 30,384.48 is: 41,882.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,470.60 : 55,785.60 = 30,384.48 : x
  2. Step 2: Convert to fraction form
    40,470.60/55,785.60 = 30,384.48/x
  3. Step 3: Cross multiply
    40,470.60x = 55,785.60 × 30,384.48
  4. Step 4: Simplify right side
    40,470.60x = 1,695,016,447.49
  5. Step 5: Solve for x
    x = 1,695,016,447.49/40,470.60
  6. Step 6: Final answer
    x = 41,882.66

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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.