Home / 22,440.78-30,958.17-13,004.28

Finding the Fourth Proportional to 22,440.78, 30,958.17 and 13,004.28

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Solution

The fourth proportional to 22,440.78, 30,958.17 and 13,004.28 is: 17,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,440.78 : 30,958.17 = 13,004.28 : x
  2. Step 2: Convert to fraction form
    22,440.78/30,958.17 = 13,004.28/x
  3. Step 3: Cross multiply
    22,440.78x = 30,958.17 × 13,004.28
  4. Step 4: Simplify right side
    22,440.78x = 402,588,710.97
  5. Step 5: Solve for x
    x = 402,588,710.97/22,440.78
  6. Step 6: Final answer
    x = 17,940.05

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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.