Home / 22,636.16-31,239.60-13,202.72

Finding the Fourth Proportional to 22,636.16, 31,239.60 and 13,202.72

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Solution

The fourth proportional to 22,636.16, 31,239.60 and 13,202.72 is: 18,220.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,636.16 : 31,239.60 = 13,202.72 : x
  2. Step 2: Convert to fraction form
    22,636.16/31,239.60 = 13,202.72/x
  3. Step 3: Cross multiply
    22,636.16x = 31,239.60 × 13,202.72
  4. Step 4: Simplify right side
    22,636.16x = 412,447,691.71
  5. Step 5: Solve for x
    x = 412,447,691.71/22,636.16
  6. Step 6: Final answer
    x = 18,220.74

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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.