Home / 23,015.80-31,760.58-13,580.92

Finding the Fourth Proportional to 23,015.80, 31,760.58 and 13,580.92

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Solution

The fourth proportional to 23,015.80, 31,760.58 and 13,580.92 is: 18,740.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,015.80 : 31,760.58 = 13,580.92 : x
  2. Step 2: Convert to fraction form
    23,015.80/31,760.58 = 13,580.92/x
  3. Step 3: Cross multiply
    23,015.80x = 31,760.58 × 13,580.92
  4. Step 4: Simplify right side
    23,015.80x = 431,337,896.13
  5. Step 5: Solve for x
    x = 431,337,896.13/23,015.80
  6. Step 6: Final answer
    x = 18,740.95

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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.