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Finding the Fourth Proportional to 33,306.91, 45,984.02 and 21,391.25

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Solution

The fourth proportional to 33,306.91, 45,984.02 and 21,391.25 is: 29,533.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,306.91 : 45,984.02 = 21,391.25 : x
  2. Step 2: Convert to fraction form
    33,306.91/45,984.02 = 21,391.25/x
  3. Step 3: Cross multiply
    33,306.91x = 45,984.02 × 21,391.25
  4. Step 4: Simplify right side
    33,306.91x = 983,655,330.95
  5. Step 5: Solve for x
    x = 983,655,330.95/33,306.91
  6. Step 6: Final answer
    x = 29,533.07

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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.