Home / 22,561.73-31,116.30-16,909.75

Finding the Fourth Proportional to 22,561.73, 31,116.30 and 16,909.75

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Solution

The fourth proportional to 22,561.73, 31,116.30 and 16,909.75 is: 23,321.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,561.73 : 31,116.30 = 16,909.75 : x
  2. Step 2: Convert to fraction form
    22,561.73/31,116.30 = 16,909.75/x
  3. Step 3: Cross multiply
    22,561.73x = 31,116.30 × 16,909.75
  4. Step 4: Simplify right side
    22,561.73x = 526,168,698.34
  5. Step 5: Solve for x
    x = 526,168,698.34/22,561.73
  6. Step 6: Final answer
    x = 23,321.29

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1.5x scale

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.