Home / 30,679.68-42,341.52-17,251.44

Finding the Fourth Proportional to 30,679.68, 42,341.52 and 17,251.44

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Solution

The fourth proportional to 30,679.68, 42,341.52 and 17,251.44 is: 23,808.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,679.68 : 42,341.52 = 17,251.44 : x
  2. Step 2: Convert to fraction form
    30,679.68/42,341.52 = 17,251.44/x
  3. Step 3: Cross multiply
    30,679.68x = 42,341.52 × 17,251.44
  4. Step 4: Simplify right side
    30,679.68x = 730,452,191.79
  5. Step 5: Solve for x
    x = 730,452,191.79/30,679.68
  6. Step 6: Final answer
    x = 23,808.99

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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.