Home / 30,660.49-42,314.98-17,049.89

Finding the Fourth Proportional to 30,660.49, 42,314.98 and 17,049.89

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Solution

The fourth proportional to 30,660.49, 42,314.98 and 17,049.89 is: 23,530.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660.49 : 42,314.98 = 17,049.89 : x
  2. Step 2: Convert to fraction form
    30,660.49/42,314.98 = 17,049.89/x
  3. Step 3: Cross multiply
    30,660.49x = 42,314.98 × 17,049.89
  4. Step 4: Simplify right side
    30,660.49x = 721,465,718.92
  5. Step 5: Solve for x
    x = 721,465,718.92/30,660.49
  6. Step 6: Final answer
    x = 23,530.79

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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.