Home / 21,679.75-32,489.07-10,269.55

Finding the Fourth Proportional to 21,679.75, 32,489.07 and 10,269.55

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Solution

The fourth proportional to 21,679.75, 32,489.07 and 10,269.55 is: 15,389.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,679.75 : 32,489.07 = 10,269.55 : x
  2. Step 2: Convert to fraction form
    21,679.75/32,489.07 = 10,269.55/x
  3. Step 3: Cross multiply
    21,679.75x = 32,489.07 × 10,269.55
  4. Step 4: Simplify right side
    21,679.75x = 333,648,130.92
  5. Step 5: Solve for x
    x = 333,648,130.92/21,679.75
  6. Step 6: Final answer
    x = 15,389.85

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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.