Home / 30,476.68-42,063.30-17,902.12

Finding the Fourth Proportional to 30,476.68, 42,063.30 and 17,902.12

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Solution

The fourth proportional to 30,476.68, 42,063.30 and 17,902.12 is: 24,708.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,476.68 : 42,063.30 = 17,902.12 : x
  2. Step 2: Convert to fraction form
    30,476.68/42,063.30 = 17,902.12/x
  3. Step 3: Cross multiply
    30,476.68x = 42,063.30 × 17,902.12
  4. Step 4: Simplify right side
    30,476.68x = 753,022,244.20
  5. Step 5: Solve for x
    x = 753,022,244.20/30,476.68
  6. Step 6: Final answer
    x = 24,708.15

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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.