Home / 21,515.44-32,278.92-19,459.12

Finding the Fourth Proportional to 21,515.44, 32,278.92 and 19,459.12

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Solution

The fourth proportional to 21,515.44, 32,278.92 and 19,459.12 is: 29,193.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515.44 : 32,278.92 = 19,459.12 : x
  2. Step 2: Convert to fraction form
    21,515.44/32,278.92 = 19,459.12/x
  3. Step 3: Cross multiply
    21,515.44x = 32,278.92 × 19,459.12
  4. Step 4: Simplify right side
    21,515.44x = 628,119,377.75
  5. Step 5: Solve for x
    x = 628,119,377.75/21,515.44
  6. Step 6: Final answer
    x = 29,193.89

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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.