Home / 40,041.38-55,257.26-21,892.47

Finding the Fourth Proportional to 40,041.38, 55,257.26 and 21,892.47

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Solution

The fourth proportional to 40,041.38, 55,257.26 and 21,892.47 is: 30,211.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,041.38 : 55,257.26 = 21,892.47 : x
  2. Step 2: Convert to fraction form
    40,041.38/55,257.26 = 21,892.47/x
  3. Step 3: Cross multiply
    40,041.38x = 55,257.26 × 21,892.47
  4. Step 4: Simplify right side
    40,041.38x = 1,209,717,961.56
  5. Step 5: Solve for x
    x = 1,209,717,961.56/40,041.38
  6. Step 6: Final answer
    x = 30,211.69

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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.