Home / 21,550.02-32,266.60-11,139.90

Finding the Fourth Proportional to 21,550.02, 32,266.60 and 11,139.90

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Solution

The fourth proportional to 21,550.02, 32,266.60 and 11,139.90 is: 16,679.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,550.02 : 32,266.60 = 11,139.90 : x
  2. Step 2: Convert to fraction form
    21,550.02/32,266.60 = 11,139.90/x
  3. Step 3: Cross multiply
    21,550.02x = 32,266.60 × 11,139.90
  4. Step 4: Simplify right side
    21,550.02x = 359,446,697.34
  5. Step 5: Solve for x
    x = 359,446,697.34/21,550.02
  6. Step 6: Final answer
    x = 16,679.65

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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.