Home / 21,965.52-30,326.26-16,920.26

Finding the Fourth Proportional to 21,965.52, 30,326.26 and 16,920.26

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Solution

The fourth proportional to 21,965.52, 30,326.26 and 16,920.26 is: 23,360.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.52 : 30,326.26 = 16,920.26 : x
  2. Step 2: Convert to fraction form
    21,965.52/30,326.26 = 16,920.26/x
  3. Step 3: Cross multiply
    21,965.52x = 30,326.26 × 16,920.26
  4. Step 4: Simplify right side
    21,965.52x = 513,128,204.03
  5. Step 5: Solve for x
    x = 513,128,204.03/21,965.52
  6. Step 6: Final answer
    x = 23,360.62

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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.