Home / 22,776.24-31,431.99-13,215.39

Finding the Fourth Proportional to 22,776.24, 31,431.99 and 13,215.39

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Solution

The fourth proportional to 22,776.24, 31,431.99 and 13,215.39 is: 18,237.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,776.24 : 31,431.99 = 13,215.39 : x
  2. Step 2: Convert to fraction form
    22,776.24/31,431.99 = 13,215.39/x
  3. Step 3: Cross multiply
    22,776.24x = 31,431.99 × 13,215.39
  4. Step 4: Simplify right side
    22,776.24x = 415,386,006.33
  5. Step 5: Solve for x
    x = 415,386,006.33/22,776.24
  6. Step 6: Final answer
    x = 18,237.69

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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.