Home / 21,631.80-32,447.56-11,641.25

Finding the Fourth Proportional to 21,631.80, 32,447.56 and 11,641.25

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Solution

The fourth proportional to 21,631.80, 32,447.56 and 11,641.25 is: 17,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.80 : 32,447.56 = 11,641.25 : x
  2. Step 2: Convert to fraction form
    21,631.80/32,447.56 = 11,641.25/x
  3. Step 3: Cross multiply
    21,631.80x = 32,447.56 × 11,641.25
  4. Step 4: Simplify right side
    21,631.80x = 377,730,195.99
  5. Step 5: Solve for x
    x = 377,730,195.99/21,631.80
  6. Step 6: Final answer
    x = 17,461.80

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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.