Home / 21,589.90-32,304.66-18,945.03

Finding the Fourth Proportional to 21,589.90, 32,304.66 and 18,945.03

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Solution

The fourth proportional to 21,589.90, 32,304.66 and 18,945.03 is: 28,347.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,589.90 : 32,304.66 = 18,945.03 : x
  2. Step 2: Convert to fraction form
    21,589.90/32,304.66 = 18,945.03/x
  3. Step 3: Cross multiply
    21,589.90x = 32,304.66 × 18,945.03
  4. Step 4: Simplify right side
    21,589.90x = 612,012,752.84
  5. Step 5: Solve for x
    x = 612,012,752.84/21,589.90
  6. Step 6: Final answer
    x = 28,347.18

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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.