Home / 27,158.22-40,677.12-20,871.95

Finding the Fourth Proportional to 27,158.22, 40,677.12 and 20,871.95

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Solution

The fourth proportional to 27,158.22, 40,677.12 and 20,871.95 is: 31,261.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,158.22 : 40,677.12 = 20,871.95 : x
  2. Step 2: Convert to fraction form
    27,158.22/40,677.12 = 20,871.95/x
  3. Step 3: Cross multiply
    27,158.22x = 40,677.12 × 20,871.95
  4. Step 4: Simplify right side
    27,158.22x = 849,010,611.40
  5. Step 5: Solve for x
    x = 849,010,611.40/27,158.22
  6. Step 6: Final answer
    x = 31,261.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.