Home / 40,372.97-55,656.95-28,399.14

Finding the Fourth Proportional to 40,372.97, 55,656.95 and 28,399.14

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Solution

The fourth proportional to 40,372.97, 55,656.95 and 28,399.14 is: 39,150.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,372.97 : 55,656.95 = 28,399.14 : x
  2. Step 2: Convert to fraction form
    40,372.97/55,656.95 = 28,399.14/x
  3. Step 3: Cross multiply
    40,372.97x = 55,656.95 × 28,399.14
  4. Step 4: Simplify right side
    40,372.97x = 1,580,609,373.03
  5. Step 5: Solve for x
    x = 1,580,609,373.03/40,372.97
  6. Step 6: Final answer
    x = 39,150.19

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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.