Home / 21,229.17-31,847.40-11,365.80

Finding the Fourth Proportional to 21,229.17, 31,847.40 and 11,365.80

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Solution

The fourth proportional to 21,229.17, 31,847.40 and 11,365.80 is: 17,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.17 : 31,847.40 = 11,365.80 : x
  2. Step 2: Convert to fraction form
    21,229.17/31,847.40 = 11,365.80/x
  3. Step 3: Cross multiply
    21,229.17x = 31,847.40 × 11,365.80
  4. Step 4: Simplify right side
    21,229.17x = 361,971,178.92
  5. Step 5: Solve for x
    x = 361,971,178.92/21,229.17
  6. Step 6: Final answer
    x = 17,050.65

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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.