Home / 40,042.28-55,271.48-28,108.55

Finding the Fourth Proportional to 40,042.28, 55,271.48 and 28,108.55

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Solution

The fourth proportional to 40,042.28, 55,271.48 and 28,108.55 is: 38,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,042.28 : 55,271.48 = 28,108.55 : x
  2. Step 2: Convert to fraction form
    40,042.28/55,271.48 = 28,108.55/x
  3. Step 3: Cross multiply
    40,042.28x = 55,271.48 × 28,108.55
  4. Step 4: Simplify right side
    40,042.28x = 1,553,601,156.79
  5. Step 5: Solve for x
    x = 1,553,601,156.79/40,042.28
  6. Step 6: Final answer
    x = 38,799.02

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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.