Home / 40,203.14-55,429.34-28,731.74

Finding the Fourth Proportional to 40,203.14, 55,429.34 and 28,731.74

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Solution

The fourth proportional to 40,203.14, 55,429.34 and 28,731.74 is: 39,613.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,203.14 : 55,429.34 = 28,731.74 : x
  2. Step 2: Convert to fraction form
    40,203.14/55,429.34 = 28,731.74/x
  3. Step 3: Cross multiply
    40,203.14x = 55,429.34 × 28,731.74
  4. Step 4: Simplify right side
    40,203.14x = 1,592,581,385.25
  5. Step 5: Solve for x
    x = 1,592,581,385.25/40,203.14
  6. Step 6: Final answer
    x = 39,613.36

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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.