Home / 22,638.16-31,242.36-13,204.72

Finding the Fourth Proportional to 22,638.16, 31,242.36 and 13,204.72

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Solution

The fourth proportional to 22,638.16, 31,242.36 and 13,204.72 is: 18,223.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,638.16 : 31,242.36 = 13,204.72 : x
  2. Step 2: Convert to fraction form
    22,638.16/31,242.36 = 13,204.72/x
  3. Step 3: Cross multiply
    22,638.16x = 31,242.36 × 13,204.72
  4. Step 4: Simplify right side
    22,638.16x = 412,546,615.94
  5. Step 5: Solve for x
    x = 412,546,615.94/22,638.16
  6. Step 6: Final answer
    x = 18,223.50

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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.