Home / 21,399.01-32,086.36-17,910.74

Finding the Fourth Proportional to 21,399.01, 32,086.36 and 17,910.74

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Solution

The fourth proportional to 21,399.01, 32,086.36 and 17,910.74 is: 26,855.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,399.01 : 32,086.36 = 17,910.74 : x
  2. Step 2: Convert to fraction form
    21,399.01/32,086.36 = 17,910.74/x
  3. Step 3: Cross multiply
    21,399.01x = 32,086.36 × 17,910.74
  4. Step 4: Simplify right side
    21,399.01x = 574,690,486.95
  5. Step 5: Solve for x
    x = 574,690,486.95/21,399.01
  6. Step 6: Final answer
    x = 26,855.94

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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.