Home / 30,657.15-42,304.25-17,227.35

Finding the Fourth Proportional to 30,657.15, 42,304.25 and 17,227.35

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Solution

The fourth proportional to 30,657.15, 42,304.25 and 17,227.35 is: 23,772.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,657.15 : 42,304.25 = 17,227.35 : x
  2. Step 2: Convert to fraction form
    30,657.15/42,304.25 = 17,227.35/x
  3. Step 3: Cross multiply
    30,657.15x = 42,304.25 × 17,227.35
  4. Step 4: Simplify right side
    30,657.15x = 728,790,164.31
  5. Step 5: Solve for x
    x = 728,790,164.31/30,657.15
  6. Step 6: Final answer
    x = 23,772.27

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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.