Home / 31,436.87-43,383.06-17,289.81

Finding the Fourth Proportional to 31,436.87, 43,383.06 and 17,289.81

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Solution

The fourth proportional to 31,436.87, 43,383.06 and 17,289.81 is: 23,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.87 : 43,383.06 = 17,289.81 : x
  2. Step 2: Convert to fraction form
    31,436.87/43,383.06 = 17,289.81/x
  3. Step 3: Cross multiply
    31,436.87x = 43,383.06 × 17,289.81
  4. Step 4: Simplify right side
    31,436.87x = 750,084,864.62
  5. Step 5: Solve for x
    x = 750,084,864.62/31,436.87
  6. Step 6: Final answer
    x = 23,860.04

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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.