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Finding the Fourth Proportional to 28,027.71, 42,034.40 and 8,301.65

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Solution

The fourth proportional to 28,027.71, 42,034.40 and 8,301.65 is: 12,450.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,027.71 : 42,034.40 = 8,301.65 : x
  2. Step 2: Convert to fraction form
    28,027.71/42,034.40 = 8,301.65/x
  3. Step 3: Cross multiply
    28,027.71x = 42,034.40 × 8,301.65
  4. Step 4: Simplify right side
    28,027.71x = 348,955,002.60
  5. Step 5: Solve for x
    x = 348,955,002.60/28,027.71
  6. Step 6: Final answer
    x = 12,450.36

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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.