Home / 30,708.50-42,377.90-17,279.97

Finding the Fourth Proportional to 30,708.50, 42,377.90 and 17,279.97

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Solution

The fourth proportional to 30,708.50, 42,377.90 and 17,279.97 is: 23,846.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,708.50 : 42,377.90 = 17,279.97 : x
  2. Step 2: Convert to fraction form
    30,708.50/42,377.90 = 17,279.97/x
  3. Step 3: Cross multiply
    30,708.50x = 42,377.90 × 17,279.97
  4. Step 4: Simplify right side
    30,708.50x = 732,288,754.26
  5. Step 5: Solve for x
    x = 732,288,754.26/30,708.50
  6. Step 6: Final answer
    x = 23,846.46

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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.