Home / 23,129.57-31,910.26-15,182.59

Finding the Fourth Proportional to 23,129.57, 31,910.26 and 15,182.59

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Solution

The fourth proportional to 23,129.57, 31,910.26 and 15,182.59 is: 20,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,129.57 : 31,910.26 = 15,182.59 : x
  2. Step 2: Convert to fraction form
    23,129.57/31,910.26 = 15,182.59/x
  3. Step 3: Cross multiply
    23,129.57x = 31,910.26 × 15,182.59
  4. Step 4: Simplify right side
    23,129.57x = 484,480,394.37
  5. Step 5: Solve for x
    x = 484,480,394.37/23,129.57
  6. Step 6: Final answer
    x = 20,946.36

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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.