Home / 30,659.54-42,315.00-17,920.26

Finding the Fourth Proportional to 30,659.54, 42,315.00 and 17,920.26

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Solution

The fourth proportional to 30,659.54, 42,315.00 and 17,920.26 is: 24,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,659.54 : 42,315.00 = 17,920.26 : x
  2. Step 2: Convert to fraction form
    30,659.54/42,315.00 = 17,920.26/x
  3. Step 3: Cross multiply
    30,659.54x = 42,315.00 × 17,920.26
  4. Step 4: Simplify right side
    30,659.54x = 758,295,734.70
  5. Step 5: Solve for x
    x = 758,295,734.70/30,659.54
  6. Step 6: Final answer
    x = 24,732.79

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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.