Home / 40,490.43-55,877-22,341.79

Finding the Fourth Proportional to 40,490.43, 55,877 and 22,341.79

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Solution

The fourth proportional to 40,490.43, 55,877 and 22,341.79 is: 30,831.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,490.43 : 55,877 = 22,341.79 : x
  2. Step 2: Convert to fraction form
    40,490.43/55,877 = 22,341.79/x
  3. Step 3: Cross multiply
    40,490.43x = 55,877 × 22,341.79
  4. Step 4: Simplify right side
    40,490.43x = 1,248,392,199.83
  5. Step 5: Solve for x
    x = 1,248,392,199.83/40,490.43
  6. Step 6: Final answer
    x = 30,831.78

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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.