Home / 40,373.30-55,657.40-28,399.48

Finding the Fourth Proportional to 40,373.30, 55,657.40 and 28,399.48

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Solution

The fourth proportional to 40,373.30, 55,657.40 and 28,399.48 is: 39,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,373.30 : 55,657.40 = 28,399.48 : x
  2. Step 2: Convert to fraction form
    40,373.30/55,657.40 = 28,399.48/x
  3. Step 3: Cross multiply
    40,373.30x = 55,657.40 × 28,399.48
  4. Step 4: Simplify right side
    40,373.30x = 1,580,640,937.01
  5. Step 5: Solve for x
    x = 1,580,640,937.01/40,373.30
  6. Step 6: Final answer
    x = 39,150.65

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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.