Home / 28,841.22-43,275.15-11,315.70

Finding the Fourth Proportional to 28,841.22, 43,275.15 and 11,315.70

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Solution

The fourth proportional to 28,841.22, 43,275.15 and 11,315.70 is: 16,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,841.22 : 43,275.15 = 11,315.70 : x
  2. Step 2: Convert to fraction form
    28,841.22/43,275.15 = 11,315.70/x
  3. Step 3: Cross multiply
    28,841.22x = 43,275.15 × 11,315.70
  4. Step 4: Simplify right side
    28,841.22x = 489,688,614.86
  5. Step 5: Solve for x
    x = 489,688,614.86/28,841.22
  6. Step 6: Final answer
    x = 16,978.78

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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.