Home / 30,821.24-42,532.89-17,209.49

Finding the Fourth Proportional to 30,821.24, 42,532.89 and 17,209.49

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Solution

The fourth proportional to 30,821.24, 42,532.89 and 17,209.49 is: 23,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821.24 : 42,532.89 = 17,209.49 : x
  2. Step 2: Convert to fraction form
    30,821.24/42,532.89 = 17,209.49/x
  3. Step 3: Cross multiply
    30,821.24x = 42,532.89 × 17,209.49
  4. Step 4: Simplify right side
    30,821.24x = 731,969,451.46
  5. Step 5: Solve for x
    x = 731,969,451.46/30,821.24
  6. Step 6: Final answer
    x = 23,748.86

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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.