Home / 21,535.47-32,290.77-8,372.45

Finding the Fourth Proportional to 21,535.47, 32,290.77 and 8,372.45

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Solution

The fourth proportional to 21,535.47, 32,290.77 and 8,372.45 is: 12,553.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,535.47 : 32,290.77 = 8,372.45 : x
  2. Step 2: Convert to fraction form
    21,535.47/32,290.77 = 8,372.45/x
  3. Step 3: Cross multiply
    21,535.47x = 32,290.77 × 8,372.45
  4. Step 4: Simplify right side
    21,535.47x = 270,352,857.29
  5. Step 5: Solve for x
    x = 270,352,857.29/21,535.47
  6. Step 6: Final answer
    x = 12,553.84

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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.