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Finding the Fourth Proportional to 28,010.52, 42,022.50 and 8,020.30

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Solution

The fourth proportional to 28,010.52, 42,022.50 and 8,020.30 is: 12,032.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,010.52 : 42,022.50 = 8,020.30 : x
  2. Step 2: Convert to fraction form
    28,010.52/42,022.50 = 8,020.30/x
  3. Step 3: Cross multiply
    28,010.52x = 42,022.50 × 8,020.30
  4. Step 4: Simplify right side
    28,010.52x = 337,033,056.75
  5. Step 5: Solve for x
    x = 337,033,056.75/28,010.52
  6. Step 6: Final answer
    x = 12,032.37

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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.