Home / 22,648.78-31,255.26-13,215.52

Finding the Fourth Proportional to 22,648.78, 31,255.26 and 13,215.52

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Solution

The fourth proportional to 22,648.78, 31,255.26 and 13,215.52 is: 18,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,648.78 : 31,255.26 = 13,215.52 : x
  2. Step 2: Convert to fraction form
    22,648.78/31,255.26 = 13,215.52/x
  3. Step 3: Cross multiply
    22,648.78x = 31,255.26 × 13,215.52
  4. Step 4: Simplify right side
    22,648.78x = 413,054,513.64
  5. Step 5: Solve for x
    x = 413,054,513.64/22,648.78
  6. Step 6: Final answer
    x = 18,237.38

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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.