Home / 28,948.60-43,439.10-12,305.80

Finding the Fourth Proportional to 28,948.60, 43,439.10 and 12,305.80

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Solution

The fourth proportional to 28,948.60, 43,439.10 and 12,305.80 is: 18,465.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,948.60 : 43,439.10 = 12,305.80 : x
  2. Step 2: Convert to fraction form
    28,948.60/43,439.10 = 12,305.80/x
  3. Step 3: Cross multiply
    28,948.60x = 43,439.10 × 12,305.80
  4. Step 4: Simplify right side
    28,948.60x = 534,552,876.78
  5. Step 5: Solve for x
    x = 534,552,876.78/28,948.60
  6. Step 6: Final answer
    x = 18,465.59

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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.