Home / 28,775.20-43,165.68-10,302.88

Finding the Fourth Proportional to 28,775.20, 43,165.68 and 10,302.88

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Solution

The fourth proportional to 28,775.20, 43,165.68 and 10,302.88 is: 15,455.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.20 : 43,165.68 = 10,302.88 : x
  2. Step 2: Convert to fraction form
    28,775.20/43,165.68 = 10,302.88/x
  3. Step 3: Cross multiply
    28,775.20x = 43,165.68 × 10,302.88
  4. Step 4: Simplify right side
    28,775.20x = 444,730,821.16
  5. Step 5: Solve for x
    x = 444,730,821.16/28,775.20
  6. Step 6: Final answer
    x = 15,455.35

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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.