Home / 28,217.19-42,315.98-11,572.50

Finding the Fourth Proportional to 28,217.19, 42,315.98 and 11,572.50

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Solution

The fourth proportional to 28,217.19, 42,315.98 and 11,572.50 is: 17,354.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,217.19 : 42,315.98 = 11,572.50 : x
  2. Step 2: Convert to fraction form
    28,217.19/42,315.98 = 11,572.50/x
  3. Step 3: Cross multiply
    28,217.19x = 42,315.98 × 11,572.50
  4. Step 4: Simplify right side
    28,217.19x = 489,701,620.69
  5. Step 5: Solve for x
    x = 489,701,620.69/28,217.19
  6. Step 6: Final answer
    x = 17,354.73

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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.