Home / 30,330.31-41,854.12-16,717.90

Finding the Fourth Proportional to 30,330.31, 41,854.12 and 16,717.90

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Solution

The fourth proportional to 30,330.31, 41,854.12 and 16,717.90 is: 23,069.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,330.31 : 41,854.12 = 16,717.90 : x
  2. Step 2: Convert to fraction form
    30,330.31/41,854.12 = 16,717.90/x
  3. Step 3: Cross multiply
    30,330.31x = 41,854.12 × 16,717.90
  4. Step 4: Simplify right side
    30,330.31x = 699,712,992.75
  5. Step 5: Solve for x
    x = 699,712,992.75/30,330.31
  6. Step 6: Final answer
    x = 23,069.76

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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.