Home / 30,534.40-42,132.36-17,789.68

Finding the Fourth Proportional to 30,534.40, 42,132.36 and 17,789.68

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Solution

The fourth proportional to 30,534.40, 42,132.36 and 17,789.68 is: 24,546.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,534.40 : 42,132.36 = 17,789.68 : x
  2. Step 2: Convert to fraction form
    30,534.40/42,132.36 = 17,789.68/x
  3. Step 3: Cross multiply
    30,534.40x = 42,132.36 × 17,789.68
  4. Step 4: Simplify right side
    30,534.40x = 749,521,202.04
  5. Step 5: Solve for x
    x = 749,521,202.04/30,534.40
  6. Step 6: Final answer
    x = 24,546.78

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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.