Home / 30,958.20-42,721.53-17,532.75

Finding the Fourth Proportional to 30,958.20, 42,721.53 and 17,532.75

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Solution

The fourth proportional to 30,958.20, 42,721.53 and 17,532.75 is: 24,194.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,958.20 : 42,721.53 = 17,532.75 : x
  2. Step 2: Convert to fraction form
    30,958.20/42,721.53 = 17,532.75/x
  3. Step 3: Cross multiply
    30,958.20x = 42,721.53 × 17,532.75
  4. Step 4: Simplify right side
    30,958.20x = 749,025,999.57
  5. Step 5: Solve for x
    x = 749,025,999.57/30,958.20
  6. Step 6: Final answer
    x = 24,194.75

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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.