Home / 25,557.20-38,333.40-11,518.16

Finding the Fourth Proportional to 25,557.20, 38,333.40 and 11,518.16

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Solution

The fourth proportional to 25,557.20, 38,333.40 and 11,518.16 is: 17,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,557.20 : 38,333.40 = 11,518.16 : x
  2. Step 2: Convert to fraction form
    25,557.20/38,333.40 = 11,518.16/x
  3. Step 3: Cross multiply
    25,557.20x = 38,333.40 × 11,518.16
  4. Step 4: Simplify right side
    25,557.20x = 441,530,234.54
  5. Step 5: Solve for x
    x = 441,530,234.54/25,557.20
  6. Step 6: Final answer
    x = 17,276.16

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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.