Home / 40,160.64-55,440.96-28,234.20

Finding the Fourth Proportional to 40,160.64, 55,440.96 and 28,234.20

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Solution

The fourth proportional to 40,160.64, 55,440.96 and 28,234.20 is: 38,976.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,160.64 : 55,440.96 = 28,234.20 : x
  2. Step 2: Convert to fraction form
    40,160.64/55,440.96 = 28,234.20/x
  3. Step 3: Cross multiply
    40,160.64x = 55,440.96 × 28,234.20
  4. Step 4: Simplify right side
    40,160.64x = 1,565,331,152.83
  5. Step 5: Solve for x
    x = 1,565,331,152.83/40,160.64
  6. Step 6: Final answer
    x = 38,976.75

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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.