Home / 23,920.31-33,010.94-13,309.72

Finding the Fourth Proportional to 23,920.31, 33,010.94 and 13,309.72

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Solution

The fourth proportional to 23,920.31, 33,010.94 and 13,309.72 is: 18,367.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,920.31 : 33,010.94 = 13,309.72 : x
  2. Step 2: Convert to fraction form
    23,920.31/33,010.94 = 13,309.72/x
  3. Step 3: Cross multiply
    23,920.31x = 33,010.94 × 13,309.72
  4. Step 4: Simplify right side
    23,920.31x = 439,366,319.08
  5. Step 5: Solve for x
    x = 439,366,319.08/23,920.31
  6. Step 6: Final answer
    x = 18,367.92

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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.