Home / 40,384.88-55,729.50-22,479.38

Finding the Fourth Proportional to 40,384.88, 55,729.50 and 22,479.38

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Solution

The fourth proportional to 40,384.88, 55,729.50 and 22,479.38 is: 31,020.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,384.88 : 55,729.50 = 22,479.38 : x
  2. Step 2: Convert to fraction form
    40,384.88/55,729.50 = 22,479.38/x
  3. Step 3: Cross multiply
    40,384.88x = 55,729.50 × 22,479.38
  4. Step 4: Simplify right side
    40,384.88x = 1,252,764,607.71
  5. Step 5: Solve for x
    x = 1,252,764,607.71/40,384.88
  6. Step 6: Final answer
    x = 31,020.63

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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.