Home / 40,145.10-55,398.87-22,240.86

Finding the Fourth Proportional to 40,145.10, 55,398.87 and 22,240.86

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Solution

The fourth proportional to 40,145.10, 55,398.87 and 22,240.86 is: 30,691.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,145.10 : 55,398.87 = 22,240.86 : x
  2. Step 2: Convert to fraction form
    40,145.10/55,398.87 = 22,240.86/x
  3. Step 3: Cross multiply
    40,145.10x = 55,398.87 × 22,240.86
  4. Step 4: Simplify right side
    40,145.10x = 1,232,118,511.83
  5. Step 5: Solve for x
    x = 1,232,118,511.83/40,145.10
  6. Step 6: Final answer
    x = 30,691.63

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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.