Home / 28,487.24-42,730.38-10,960.86

Finding the Fourth Proportional to 28,487.24, 42,730.38 and 10,960.86

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Solution

The fourth proportional to 28,487.24, 42,730.38 and 10,960.86 is: 16,441.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,487.24 : 42,730.38 = 10,960.86 : x
  2. Step 2: Convert to fraction form
    28,487.24/42,730.38 = 10,960.86/x
  3. Step 3: Cross multiply
    28,487.24x = 42,730.38 × 10,960.86
  4. Step 4: Simplify right side
    28,487.24x = 468,361,712.93
  5. Step 5: Solve for x
    x = 468,361,712.93/28,487.24
  6. Step 6: Final answer
    x = 16,441.11

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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.