Home / 33,211.45-45,805.88-21,275.90

Finding the Fourth Proportional to 33,211.45, 45,805.88 and 21,275.90

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Solution

The fourth proportional to 33,211.45, 45,805.88 and 21,275.90 is: 29,344.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,211.45 : 45,805.88 = 21,275.90 : x
  2. Step 2: Convert to fraction form
    33,211.45/45,805.88 = 21,275.90/x
  3. Step 3: Cross multiply
    33,211.45x = 45,805.88 × 21,275.90
  4. Step 4: Simplify right side
    33,211.45x = 974,561,322.29
  5. Step 5: Solve for x
    x = 974,561,322.29/33,211.45
  6. Step 6: Final answer
    x = 29,344.14

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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.