Home / 40,522.12-55,943.94-30,886.36

Finding the Fourth Proportional to 40,522.12, 55,943.94 and 30,886.36

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Solution

The fourth proportional to 40,522.12, 55,943.94 and 30,886.36 is: 42,641.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,522.12 : 55,943.94 = 30,886.36 : x
  2. Step 2: Convert to fraction form
    40,522.12/55,943.94 = 30,886.36/x
  3. Step 3: Cross multiply
    40,522.12x = 55,943.94 × 30,886.36
  4. Step 4: Simplify right side
    40,522.12x = 1,727,904,670.66
  5. Step 5: Solve for x
    x = 1,727,904,670.66/40,522.12
  6. Step 6: Final answer
    x = 42,641.02

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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.