Home / 21,487.13-32,217.73-9,638.75

Finding the Fourth Proportional to 21,487.13, 32,217.73 and 9,638.75

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Solution

The fourth proportional to 21,487.13, 32,217.73 and 9,638.75 is: 14,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,487.13 : 32,217.73 = 9,638.75 : x
  2. Step 2: Convert to fraction form
    21,487.13/32,217.73 = 9,638.75/x
  3. Step 3: Cross multiply
    21,487.13x = 32,217.73 × 9,638.75
  4. Step 4: Simplify right side
    21,487.13x = 310,538,645.04
  5. Step 5: Solve for x
    x = 310,538,645.04/21,487.13
  6. Step 6: Final answer
    x = 14,452.31

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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.