Home / 22,703.85-31,330.82-13,144.14

Finding the Fourth Proportional to 22,703.85, 31,330.82 and 13,144.14

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Solution

The fourth proportional to 22,703.85, 31,330.82 and 13,144.14 is: 18,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,703.85 : 31,330.82 = 13,144.14 : x
  2. Step 2: Convert to fraction form
    22,703.85/31,330.82 = 13,144.14/x
  3. Step 3: Cross multiply
    22,703.85x = 31,330.82 × 13,144.14
  4. Step 4: Simplify right side
    22,703.85x = 411,816,618.67
  5. Step 5: Solve for x
    x = 411,816,618.67/22,703.85
  6. Step 6: Final answer
    x = 18,138.63

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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.