Home / 21,437.40-32,078.34-18,113.16

Finding the Fourth Proportional to 21,437.40, 32,078.34 and 18,113.16

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Solution

The fourth proportional to 21,437.40, 32,078.34 and 18,113.16 is: 27,104.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.40 : 32,078.34 = 18,113.16 : x
  2. Step 2: Convert to fraction form
    21,437.40/32,078.34 = 18,113.16/x
  3. Step 3: Cross multiply
    21,437.40x = 32,078.34 × 18,113.16
  4. Step 4: Simplify right side
    21,437.40x = 581,040,104.95
  5. Step 5: Solve for x
    x = 581,040,104.95/21,437.40
  6. Step 6: Final answer
    x = 27,104.04

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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.