Home / 20,761.52-31,113.09-9,050.18

Finding the Fourth Proportional to 20,761.52, 31,113.09 and 9,050.18

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Solution

The fourth proportional to 20,761.52, 31,113.09 and 9,050.18 is: 13,562.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761.52 : 31,113.09 = 9,050.18 : x
  2. Step 2: Convert to fraction form
    20,761.52/31,113.09 = 9,050.18/x
  3. Step 3: Cross multiply
    20,761.52x = 31,113.09 × 9,050.18
  4. Step 4: Simplify right side
    20,761.52x = 281,579,064.86
  5. Step 5: Solve for x
    x = 281,579,064.86/20,761.52
  6. Step 6: Final answer
    x = 13,562.55

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1.5x scale

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.