Home / 21,456.41-32,189.26-8,806.20

Finding the Fourth Proportional to 21,456.41, 32,189.26 and 8,806.20

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Solution

The fourth proportional to 21,456.41, 32,189.26 and 8,806.20 is: 13,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456.41 : 32,189.26 = 8,806.20 : x
  2. Step 2: Convert to fraction form
    21,456.41/32,189.26 = 8,806.20/x
  3. Step 3: Cross multiply
    21,456.41x = 32,189.26 × 8,806.20
  4. Step 4: Simplify right side
    21,456.41x = 283,465,039.40
  5. Step 5: Solve for x
    x = 283,465,039.40/21,456.41
  6. Step 6: Final answer
    x = 13,211.20

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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.