Home / 28,088.24-42,103.20-11,441.12

Finding the Fourth Proportional to 28,088.24, 42,103.20 and 11,441.12

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Solution

The fourth proportional to 28,088.24, 42,103.20 and 11,441.12 is: 17,149.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,088.24 : 42,103.20 = 11,441.12 : x
  2. Step 2: Convert to fraction form
    28,088.24/42,103.20 = 11,441.12/x
  3. Step 3: Cross multiply
    28,088.24x = 42,103.20 × 11,441.12
  4. Step 4: Simplify right side
    28,088.24x = 481,707,763.58
  5. Step 5: Solve for x
    x = 481,707,763.58/28,088.24
  6. Step 6: Final answer
    x = 17,149.80

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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.