Home / 31,417.78-43,356.54-17,993.49

Finding the Fourth Proportional to 31,417.78, 43,356.54 and 17,993.49

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Solution

The fourth proportional to 31,417.78, 43,356.54 and 17,993.49 is: 24,831.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,417.78 : 43,356.54 = 17,993.49 : x
  2. Step 2: Convert to fraction form
    31,417.78/43,356.54 = 17,993.49/x
  3. Step 3: Cross multiply
    31,417.78x = 43,356.54 × 17,993.49
  4. Step 4: Simplify right side
    31,417.78x = 780,135,252.14
  5. Step 5: Solve for x
    x = 780,135,252.14/31,417.78
  6. Step 6: Final answer
    x = 24,831.01

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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.