Home / 21,699.22-32,542.26-9,219.13

Finding the Fourth Proportional to 21,699.22, 32,542.26 and 9,219.13

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Solution

The fourth proportional to 21,699.22, 32,542.26 and 9,219.13 is: 13,825.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,699.22 : 32,542.26 = 9,219.13 : x
  2. Step 2: Convert to fraction form
    21,699.22/32,542.26 = 9,219.13/x
  3. Step 3: Cross multiply
    21,699.22x = 32,542.26 × 9,219.13
  4. Step 4: Simplify right side
    21,699.22x = 300,011,325.43
  5. Step 5: Solve for x
    x = 300,011,325.43/21,699.22
  6. Step 6: Final answer
    x = 13,825.90

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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.