Home / 21,759.91-30,045.63-16,716.14

Finding the Fourth Proportional to 21,759.91, 30,045.63 and 16,716.14

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Solution

The fourth proportional to 21,759.91, 30,045.63 and 16,716.14 is: 23,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,759.91 : 30,045.63 = 16,716.14 : x
  2. Step 2: Convert to fraction form
    21,759.91/30,045.63 = 16,716.14/x
  3. Step 3: Cross multiply
    21,759.91x = 30,045.63 × 16,716.14
  4. Step 4: Simplify right side
    21,759.91x = 502,246,982.60
  5. Step 5: Solve for x
    x = 502,246,982.60/21,759.91
  6. Step 6: Final answer
    x = 23,081.30

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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.