Home / 31,500.90-43,472.03-19,396.80

Finding the Fourth Proportional to 31,500.90, 43,472.03 and 19,396.80

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Solution

The fourth proportional to 31,500.90, 43,472.03 and 19,396.80 is: 26,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,500.90 : 43,472.03 = 19,396.80 : x
  2. Step 2: Convert to fraction form
    31,500.90/43,472.03 = 19,396.80/x
  3. Step 3: Cross multiply
    31,500.90x = 43,472.03 × 19,396.80
  4. Step 4: Simplify right side
    31,500.90x = 843,218,174.52
  5. Step 5: Solve for x
    x = 843,218,174.52/31,500.90
  6. Step 6: Final answer
    x = 26,768.07

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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.