Home / 28,020.43-42,034.70-8,296.39

Finding the Fourth Proportional to 28,020.43, 42,034.70 and 8,296.39

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Solution

The fourth proportional to 28,020.43, 42,034.70 and 8,296.39 is: 12,445.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020.43 : 42,034.70 = 8,296.39 : x
  2. Step 2: Convert to fraction form
    28,020.43/42,034.70 = 8,296.39/x
  3. Step 3: Cross multiply
    28,020.43x = 42,034.70 × 8,296.39
  4. Step 4: Simplify right side
    28,020.43x = 348,736,264.73
  5. Step 5: Solve for x
    x = 348,736,264.73/28,020.43
  6. Step 6: Final answer
    x = 12,445.79

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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.