Home / 30,708.36-42,374.49-17,279.31

Finding the Fourth Proportional to 30,708.36, 42,374.49 and 17,279.31

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Solution

The fourth proportional to 30,708.36, 42,374.49 and 17,279.31 is: 23,843.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,708.36 : 42,374.49 = 17,279.31 : x
  2. Step 2: Convert to fraction form
    30,708.36/42,374.49 = 17,279.31/x
  3. Step 3: Cross multiply
    30,708.36x = 42,374.49 × 17,279.31
  4. Step 4: Simplify right side
    30,708.36x = 732,201,948.80
  5. Step 5: Solve for x
    x = 732,201,948.80/30,708.36
  6. Step 6: Final answer
    x = 23,843.73

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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.