Home / 15,881.66-23,830.31-11,231.55

Finding the Fourth Proportional to 15,881.66, 23,830.31 and 11,231.55

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Solution

The fourth proportional to 15,881.66, 23,830.31 and 11,231.55 is: 16,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,881.66 : 23,830.31 = 11,231.55 : x
  2. Step 2: Convert to fraction form
    15,881.66/23,830.31 = 11,231.55/x
  3. Step 3: Cross multiply
    15,881.66x = 23,830.31 × 11,231.55
  4. Step 4: Simplify right side
    15,881.66x = 267,651,318.28
  5. Step 5: Solve for x
    x = 267,651,318.28/15,881.66
  6. Step 6: Final answer
    x = 16,852.86

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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.