Home / 40,372.52-55,656.34-28,398.70

Finding the Fourth Proportional to 40,372.52, 55,656.34 and 28,398.70

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Solution

The fourth proportional to 40,372.52, 55,656.34 and 28,398.70 is: 39,149.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,372.52 : 55,656.34 = 28,398.70 : x
  2. Step 2: Convert to fraction form
    40,372.52/55,656.34 = 28,398.70/x
  3. Step 3: Cross multiply
    40,372.52x = 55,656.34 × 28,398.70
  4. Step 4: Simplify right side
    40,372.52x = 1,580,567,353.48
  5. Step 5: Solve for x
    x = 1,580,567,353.48/40,372.52
  6. Step 6: Final answer
    x = 39,149.58

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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.