Home / 22,721.34-31,360.11-13,292.22

Finding the Fourth Proportional to 22,721.34, 31,360.11 and 13,292.22

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Solution

The fourth proportional to 22,721.34, 31,360.11 and 13,292.22 is: 18,345.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,721.34 : 31,360.11 = 13,292.22 : x
  2. Step 2: Convert to fraction form
    22,721.34/31,360.11 = 13,292.22/x
  3. Step 3: Cross multiply
    22,721.34x = 31,360.11 × 13,292.22
  4. Step 4: Simplify right side
    22,721.34x = 416,845,481.34
  5. Step 5: Solve for x
    x = 416,845,481.34/22,721.34
  6. Step 6: Final answer
    x = 18,345.99

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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.