Home / 31,290.23-43,174.04-17,865.85

Finding the Fourth Proportional to 31,290.23, 43,174.04 and 17,865.85

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Solution

The fourth proportional to 31,290.23, 43,174.04 and 17,865.85 is: 24,651.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,290.23 : 43,174.04 = 17,865.85 : x
  2. Step 2: Convert to fraction form
    31,290.23/43,174.04 = 17,865.85/x
  3. Step 3: Cross multiply
    31,290.23x = 43,174.04 × 17,865.85
  4. Step 4: Simplify right side
    31,290.23x = 771,340,922.53
  5. Step 5: Solve for x
    x = 771,340,922.53/31,290.23
  6. Step 6: Final answer
    x = 24,651.17

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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.