Home / 19,321.53-28,988.06-8,082.29

Finding the Fourth Proportional to 19,321.53, 28,988.06 and 8,082.29

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Solution

The fourth proportional to 19,321.53, 28,988.06 and 8,082.29 is: 12,125.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.53 : 28,988.06 = 8,082.29 : x
  2. Step 2: Convert to fraction form
    19,321.53/28,988.06 = 8,082.29/x
  3. Step 3: Cross multiply
    19,321.53x = 28,988.06 × 8,082.29
  4. Step 4: Simplify right side
    19,321.53x = 234,289,722.11
  5. Step 5: Solve for x
    x = 234,289,722.11/19,321.53
  6. Step 6: Final answer
    x = 12,125.84

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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.