Home / 40,385.28-55,725.02-22,479.82

Finding the Fourth Proportional to 40,385.28, 55,725.02 and 22,479.82

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Solution

The fourth proportional to 40,385.28, 55,725.02 and 22,479.82 is: 31,018.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,385.28 : 55,725.02 = 22,479.82 : x
  2. Step 2: Convert to fraction form
    40,385.28/55,725.02 = 22,479.82/x
  3. Step 3: Cross multiply
    40,385.28x = 55,725.02 × 22,479.82
  4. Step 4: Simplify right side
    40,385.28x = 1,252,688,419.10
  5. Step 5: Solve for x
    x = 1,252,688,419.10/40,385.28
  6. Step 6: Final answer
    x = 31,018.44

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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.