Home / 21,501.20-32,269.08-11,647.28

Finding the Fourth Proportional to 21,501.20, 32,269.08 and 11,647.28

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Solution

The fourth proportional to 21,501.20, 32,269.08 and 11,647.28 is: 17,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,501.20 : 32,269.08 = 11,647.28 : x
  2. Step 2: Convert to fraction form
    21,501.20/32,269.08 = 11,647.28/x
  3. Step 3: Cross multiply
    21,501.20x = 32,269.08 × 11,647.28
  4. Step 4: Simplify right side
    21,501.20x = 375,847,010.10
  5. Step 5: Solve for x
    x = 375,847,010.10/21,501.20
  6. Step 6: Final answer
    x = 17,480.28

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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.