Home / 21,391.39-32,087.07-5,809.02

Finding the Fourth Proportional to 21,391.39, 32,087.07 and 5,809.02

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Solution

The fourth proportional to 21,391.39, 32,087.07 and 5,809.02 is: 8,713.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391.39 : 32,087.07 = 5,809.02 : x
  2. Step 2: Convert to fraction form
    21,391.39/32,087.07 = 5,809.02/x
  3. Step 3: Cross multiply
    21,391.39x = 32,087.07 × 5,809.02
  4. Step 4: Simplify right side
    21,391.39x = 186,394,311.04
  5. Step 5: Solve for x
    x = 186,394,311.04/21,391.39
  6. Step 6: Final answer
    x = 8,713.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.