Home / 23,129.37-31,918.80-13,569.42

Finding the Fourth Proportional to 23,129.37, 31,918.80 and 13,569.42

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Solution

The fourth proportional to 23,129.37, 31,918.80 and 13,569.42 is: 18,725.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.37 : 31,918.80 = 13,569.42 : x
  2. Step 2: Convert to fraction form
    23,129.37/31,918.80 = 13,569.42/x
  3. Step 3: Cross multiply
    23,129.37x = 31,918.80 × 13,569.42
  4. Step 4: Simplify right side
    23,129.37x = 433,119,773.68
  5. Step 5: Solve for x
    x = 433,119,773.68/23,129.37
  6. Step 6: Final answer
    x = 18,725.97

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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.