Home / 28,531.31-42,800.60-11,006.15

Finding the Fourth Proportional to 28,531.31, 42,800.60 and 11,006.15

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Solution

The fourth proportional to 28,531.31, 42,800.60 and 11,006.15 is: 16,510.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.31 : 42,800.60 = 11,006.15 : x
  2. Step 2: Convert to fraction form
    28,531.31/42,800.60 = 11,006.15/x
  3. Step 3: Cross multiply
    28,531.31x = 42,800.60 × 11,006.15
  4. Step 4: Simplify right side
    28,531.31x = 471,069,637.20
  5. Step 5: Solve for x
    x = 471,069,637.20/28,531.31
  6. Step 6: Final answer
    x = 16,510.62

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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.