Home / 40,385.05-55,730.13-22,479.59

Finding the Fourth Proportional to 40,385.05, 55,730.13 and 22,479.59

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Solution

The fourth proportional to 40,385.05, 55,730.13 and 22,479.59 is: 31,021.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,385.05 : 55,730.13 = 22,479.59 : x
  2. Step 2: Convert to fraction form
    40,385.05/55,730.13 = 22,479.59/x
  3. Step 3: Cross multiply
    40,385.05x = 55,730.13 × 22,479.59
  4. Step 4: Simplify right side
    40,385.05x = 1,252,790,528.07
  5. Step 5: Solve for x
    x = 1,252,790,528.07/40,385.05
  6. Step 6: Final answer
    x = 31,021.15

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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.