Home / 15,520.36-23,235.65-13,917.92

Finding the Fourth Proportional to 15,520.36, 23,235.65 and 13,917.92

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Solution

The fourth proportional to 15,520.36, 23,235.65 and 13,917.92 is: 20,836.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,520.36 : 23,235.65 = 13,917.92 : x
  2. Step 2: Convert to fraction form
    15,520.36/23,235.65 = 13,917.92/x
  3. Step 3: Cross multiply
    15,520.36x = 23,235.65 × 13,917.92
  4. Step 4: Simplify right side
    15,520.36x = 323,392,010.73
  5. Step 5: Solve for x
    x = 323,392,010.73/15,520.36
  6. Step 6: Final answer
    x = 20,836.63

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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.