Home / 34,580.80-47,722.11-20,433.61

Finding the Fourth Proportional to 34,580.80, 47,722.11 and 20,433.61

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Solution

The fourth proportional to 34,580.80, 47,722.11 and 20,433.61 is: 28,198.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,580.80 : 47,722.11 = 20,433.61 : x
  2. Step 2: Convert to fraction form
    34,580.80/47,722.11 = 20,433.61/x
  3. Step 3: Cross multiply
    34,580.80x = 47,722.11 × 20,433.61
  4. Step 4: Simplify right side
    34,580.80x = 975,134,984.12
  5. Step 5: Solve for x
    x = 975,134,984.12/34,580.80
  6. Step 6: Final answer
    x = 28,198.74

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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.