Home / 31,154.16-42,992.94-17,007.36

Finding the Fourth Proportional to 31,154.16, 42,992.94 and 17,007.36

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Solution

The fourth proportional to 31,154.16, 42,992.94 and 17,007.36 is: 23,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.16 : 42,992.94 = 17,007.36 : x
  2. Step 2: Convert to fraction form
    31,154.16/42,992.94 = 17,007.36/x
  3. Step 3: Cross multiply
    31,154.16x = 42,992.94 × 17,007.36
  4. Step 4: Simplify right side
    31,154.16x = 731,196,408.04
  5. Step 5: Solve for x
    x = 731,196,408.04/31,154.16
  6. Step 6: Final answer
    x = 23,470.27

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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.