Home / 30,489.76-42,062.52-17,908.84

Finding the Fourth Proportional to 30,489.76, 42,062.52 and 17,908.84

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Solution

The fourth proportional to 30,489.76, 42,062.52 and 17,908.84 is: 24,706.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,489.76 : 42,062.52 = 17,908.84 : x
  2. Step 2: Convert to fraction form
    30,489.76/42,062.52 = 17,908.84/x
  3. Step 3: Cross multiply
    30,489.76x = 42,062.52 × 17,908.84
  4. Step 4: Simplify right side
    30,489.76x = 753,290,940.68
  5. Step 5: Solve for x
    x = 753,290,940.68/30,489.76
  6. Step 6: Final answer
    x = 24,706.36

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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.