Home / 22,709.26-31,338.38-12,637.42

Finding the Fourth Proportional to 22,709.26, 31,338.38 and 12,637.42

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Solution

The fourth proportional to 22,709.26, 31,338.38 and 12,637.42 is: 17,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,709.26 : 31,338.38 = 12,637.42 : x
  2. Step 2: Convert to fraction form
    22,709.26/31,338.38 = 12,637.42/x
  3. Step 3: Cross multiply
    22,709.26x = 31,338.38 × 12,637.42
  4. Step 4: Simplify right side
    22,709.26x = 396,036,270.18
  5. Step 5: Solve for x
    x = 396,036,270.18/22,709.26
  6. Step 6: Final answer
    x = 17,439.42

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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.