Home / 21,982.62-30,336.58-13,032.12

Finding the Fourth Proportional to 21,982.62, 30,336.58 and 13,032.12

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Solution

The fourth proportional to 21,982.62, 30,336.58 and 13,032.12 is: 17,984.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.62 : 30,336.58 = 13,032.12 : x
  2. Step 2: Convert to fraction form
    21,982.62/30,336.58 = 13,032.12/x
  3. Step 3: Cross multiply
    21,982.62x = 30,336.58 × 13,032.12
  4. Step 4: Simplify right side
    21,982.62x = 395,349,950.95
  5. Step 5: Solve for x
    x = 395,349,950.95/21,982.62
  6. Step 6: Final answer
    x = 17,984.66

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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.