Home / 28,948.05-43,424.10-12,306.20

Finding the Fourth Proportional to 28,948.05, 43,424.10 and 12,306.20

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Solution

The fourth proportional to 28,948.05, 43,424.10 and 12,306.20 is: 18,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.05 : 43,424.10 = 12,306.20 : x
  2. Step 2: Convert to fraction form
    28,948.05/43,424.10 = 12,306.20/x
  3. Step 3: Cross multiply
    28,948.05x = 43,424.10 × 12,306.20
  4. Step 4: Simplify right side
    28,948.05x = 534,385,442.30
  5. Step 5: Solve for x
    x = 534,385,442.30/28,948.05
  6. Step 6: Final answer
    x = 18,460.15

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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.