Home / 28,020.28-42,031.02-8,299.24

Finding the Fourth Proportional to 28,020.28, 42,031.02 and 8,299.24

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Solution

The fourth proportional to 28,020.28, 42,031.02 and 8,299.24 is: 12,449.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020.28 : 42,031.02 = 8,299.24 : x
  2. Step 2: Convert to fraction form
    28,020.28/42,031.02 = 8,299.24/x
  3. Step 3: Cross multiply
    28,020.28x = 42,031.02 × 8,299.24
  4. Step 4: Simplify right side
    28,020.28x = 348,825,522.42
  5. Step 5: Solve for x
    x = 348,825,522.42/28,020.28
  6. Step 6: Final answer
    x = 12,449.04

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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.