Home / 22,305.26-30,780.34-13,347.47

Finding the Fourth Proportional to 22,305.26, 30,780.34 and 13,347.47

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Solution

The fourth proportional to 22,305.26, 30,780.34 and 13,347.47 is: 18,418.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,305.26 : 30,780.34 = 13,347.47 : x
  2. Step 2: Convert to fraction form
    22,305.26/30,780.34 = 13,347.47/x
  3. Step 3: Cross multiply
    22,305.26x = 30,780.34 × 13,347.47
  4. Step 4: Simplify right side
    22,305.26x = 410,839,708.32
  5. Step 5: Solve for x
    x = 410,839,708.32/22,305.26
  6. Step 6: Final answer
    x = 18,418.96

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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.