Home / 21,489.02-32,243.20-11,616.74

Finding the Fourth Proportional to 21,489.02, 32,243.20 and 11,616.74

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Solution

The fourth proportional to 21,489.02, 32,243.20 and 11,616.74 is: 17,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.02 : 32,243.20 = 11,616.74 : x
  2. Step 2: Convert to fraction form
    21,489.02/32,243.20 = 11,616.74/x
  3. Step 3: Cross multiply
    21,489.02x = 32,243.20 × 11,616.74
  4. Step 4: Simplify right side
    21,489.02x = 374,560,801.82
  5. Step 5: Solve for x
    x = 374,560,801.82/21,489.02
  6. Step 6: Final answer
    x = 17,430.34

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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.