Home / 22,698.78-31,332.87-13,270.38

Finding the Fourth Proportional to 22,698.78, 31,332.87 and 13,270.38

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Solution

The fourth proportional to 22,698.78, 31,332.87 and 13,270.38 is: 18,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,698.78 : 31,332.87 = 13,270.38 : x
  2. Step 2: Convert to fraction form
    22,698.78/31,332.87 = 13,270.38/x
  3. Step 3: Cross multiply
    22,698.78x = 31,332.87 × 13,270.38
  4. Step 4: Simplify right side
    22,698.78x = 415,799,091.39
  5. Step 5: Solve for x
    x = 415,799,091.39/22,698.78
  6. Step 6: Final answer
    x = 18,318.13

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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.