Home / 28,863.19-43,295.10-10,143.76

Finding the Fourth Proportional to 28,863.19, 43,295.10 and 10,143.76

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Solution

The fourth proportional to 28,863.19, 43,295.10 and 10,143.76 is: 15,215.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863.19 : 43,295.10 = 10,143.76 : x
  2. Step 2: Convert to fraction form
    28,863.19/43,295.10 = 10,143.76/x
  3. Step 3: Cross multiply
    28,863.19x = 43,295.10 × 10,143.76
  4. Step 4: Simplify right side
    28,863.19x = 439,175,103.58
  5. Step 5: Solve for x
    x = 439,175,103.58/28,863.19
  6. Step 6: Final answer
    x = 15,215.75

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Double scale
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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.