Home / 21,601.34-32,382.26-18,290.90

Finding the Fourth Proportional to 21,601.34, 32,382.26 and 18,290.90

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Solution

The fourth proportional to 21,601.34, 32,382.26 and 18,290.90 is: 27,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,601.34 : 32,382.26 = 18,290.90 : x
  2. Step 2: Convert to fraction form
    21,601.34/32,382.26 = 18,290.90/x
  3. Step 3: Cross multiply
    21,601.34x = 32,382.26 × 18,290.90
  4. Step 4: Simplify right side
    21,601.34x = 592,300,679.43
  5. Step 5: Solve for x
    x = 592,300,679.43/21,601.34
  6. Step 6: Final answer
    x = 27,419.63

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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.