Home / 30,657.62-42,306.14-17,911.98

Finding the Fourth Proportional to 30,657.62, 42,306.14 and 17,911.98

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Solution

The fourth proportional to 30,657.62, 42,306.14 and 17,911.98 is: 24,717.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,657.62 : 42,306.14 = 17,911.98 : x
  2. Step 2: Convert to fraction form
    30,657.62/42,306.14 = 17,911.98/x
  3. Step 3: Cross multiply
    30,657.62x = 42,306.14 × 17,911.98
  4. Step 4: Simplify right side
    30,657.62x = 757,786,733.56
  5. Step 5: Solve for x
    x = 757,786,733.56/30,657.62
  6. Step 6: Final answer
    x = 24,717.73

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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.