Home / 23,014.80-31,759.20-13,579.92

Finding the Fourth Proportional to 23,014.80, 31,759.20 and 13,579.92

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Solution

The fourth proportional to 23,014.80, 31,759.20 and 13,579.92 is: 18,739.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,014.80 : 31,759.20 = 13,579.92 : x
  2. Step 2: Convert to fraction form
    23,014.80/31,759.20 = 13,579.92/x
  3. Step 3: Cross multiply
    23,014.80x = 31,759.20 × 13,579.92
  4. Step 4: Simplify right side
    23,014.80x = 431,287,395.26
  5. Step 5: Solve for x
    x = 431,287,395.26/23,014.80
  6. Step 6: Final answer
    x = 18,739.57

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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.