Home / 30,909.91-42,651.18-17,297.88

Finding the Fourth Proportional to 30,909.91, 42,651.18 and 17,297.88

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Solution

The fourth proportional to 30,909.91, 42,651.18 and 17,297.88 is: 23,868.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,909.91 : 42,651.18 = 17,297.88 : x
  2. Step 2: Convert to fraction form
    30,909.91/42,651.18 = 17,297.88/x
  3. Step 3: Cross multiply
    30,909.91x = 42,651.18 × 17,297.88
  4. Step 4: Simplify right side
    30,909.91x = 737,775,100.13
  5. Step 5: Solve for x
    x = 737,775,100.13/30,909.91
  6. Step 6: Final answer
    x = 23,868.57

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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.