Home / 21,840.49-32,768.97-13,081.69

Finding the Fourth Proportional to 21,840.49, 32,768.97 and 13,081.69

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Solution

The fourth proportional to 21,840.49, 32,768.97 and 13,081.69 is: 19,627.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840.49 : 32,768.97 = 13,081.69 : x
  2. Step 2: Convert to fraction form
    21,840.49/32,768.97 = 13,081.69/x
  3. Step 3: Cross multiply
    21,840.49x = 32,768.97 × 13,081.69
  4. Step 4: Simplify right side
    21,840.49x = 428,673,507.16
  5. Step 5: Solve for x
    x = 428,673,507.16/21,840.49
  6. Step 6: Final answer
    x = 19,627.47

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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.