Home / 28,930.08-43,401.66-9,209.76

Finding the Fourth Proportional to 28,930.08, 43,401.66 and 9,209.76

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Solution

The fourth proportional to 28,930.08, 43,401.66 and 9,209.76 is: 13,816.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.08 : 43,401.66 = 9,209.76 : x
  2. Step 2: Convert to fraction form
    28,930.08/43,401.66 = 9,209.76/x
  3. Step 3: Cross multiply
    28,930.08x = 43,401.66 × 9,209.76
  4. Step 4: Simplify right side
    28,930.08x = 399,718,872.20
  5. Step 5: Solve for x
    x = 399,718,872.20/28,930.08
  6. Step 6: Final answer
    x = 13,816.72

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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.