Home / 28,020.30-42,034.54-8,296.26

Finding the Fourth Proportional to 28,020.30, 42,034.54 and 8,296.26

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Solution

The fourth proportional to 28,020.30, 42,034.54 and 8,296.26 is: 12,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020.30 : 42,034.54 = 8,296.26 : x
  2. Step 2: Convert to fraction form
    28,020.30/42,034.54 = 8,296.26/x
  3. Step 3: Cross multiply
    28,020.30x = 42,034.54 × 8,296.26
  4. Step 4: Simplify right side
    28,020.30x = 348,729,472.82
  5. Step 5: Solve for x
    x = 348,729,472.82/28,020.30
  6. Step 6: Final answer
    x = 12,445.60

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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.