Home / 28,899.18-43,348.68-10,890.78

Finding the Fourth Proportional to 28,899.18, 43,348.68 and 10,890.78

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Solution

The fourth proportional to 28,899.18, 43,348.68 and 10,890.78 is: 16,336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.18 : 43,348.68 = 10,890.78 : x
  2. Step 2: Convert to fraction form
    28,899.18/43,348.68 = 10,890.78/x
  3. Step 3: Cross multiply
    28,899.18x = 43,348.68 × 10,890.78
  4. Step 4: Simplify right side
    28,899.18x = 472,100,937.17
  5. Step 5: Solve for x
    x = 472,100,937.17/28,899.18
  6. Step 6: Final answer
    x = 16,336.14

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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.