Home / 30,381.92-41,920.79-17,458.69

Finding the Fourth Proportional to 30,381.92, 41,920.79 and 17,458.69

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Solution

The fourth proportional to 30,381.92, 41,920.79 and 17,458.69 is: 24,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,381.92 : 41,920.79 = 17,458.69 : x
  2. Step 2: Convert to fraction form
    30,381.92/41,920.79 = 17,458.69/x
  3. Step 3: Cross multiply
    30,381.92x = 41,920.79 × 17,458.69
  4. Step 4: Simplify right side
    30,381.92x = 731,882,094.67
  5. Step 5: Solve for x
    x = 731,882,094.67/30,381.92
  6. Step 6: Final answer
    x = 24,089.40

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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.