Home / 23,129.19-31,917.08-13,567.75

Finding the Fourth Proportional to 23,129.19, 31,917.08 and 13,567.75

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Solution

The fourth proportional to 23,129.19, 31,917.08 and 13,567.75 is: 18,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.19 : 31,917.08 = 13,567.75 : x
  2. Step 2: Convert to fraction form
    23,129.19/31,917.08 = 13,567.75/x
  3. Step 3: Cross multiply
    23,129.19x = 31,917.08 × 13,567.75
  4. Step 4: Simplify right side
    23,129.19x = 433,042,928.25
  5. Step 5: Solve for x
    x = 433,042,928.25/23,129.19
  6. Step 6: Final answer
    x = 18,722.79

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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.