Home / 28,103.46-38,788.26-18,044.64

Finding the Fourth Proportional to 28,103.46, 38,788.26 and 18,044.64

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Solution

The fourth proportional to 28,103.46, 38,788.26 and 18,044.64 is: 24,905.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.46 : 38,788.26 = 18,044.64 : x
  2. Step 2: Convert to fraction form
    28,103.46/38,788.26 = 18,044.64/x
  3. Step 3: Cross multiply
    28,103.46x = 38,788.26 × 18,044.64
  4. Step 4: Simplify right side
    28,103.46x = 699,920,187.93
  5. Step 5: Solve for x
    x = 699,920,187.93/28,103.46
  6. Step 6: Final answer
    x = 24,905.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.