Home / 28,746.92-43,103.09-10,978.76

Finding the Fourth Proportional to 28,746.92, 43,103.09 and 10,978.76

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Solution

The fourth proportional to 28,746.92, 43,103.09 and 10,978.76 is: 16,461.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.92 : 43,103.09 = 10,978.76 : x
  2. Step 2: Convert to fraction form
    28,746.92/43,103.09 = 10,978.76/x
  3. Step 3: Cross multiply
    28,746.92x = 43,103.09 × 10,978.76
  4. Step 4: Simplify right side
    28,746.92x = 473,218,209.96
  5. Step 5: Solve for x
    x = 473,218,209.96/28,746.92
  6. Step 6: Final answer
    x = 16,461.53

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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.