Home / 33,071.08-45,624.90-21,131.56

Finding the Fourth Proportional to 33,071.08, 45,624.90 and 21,131.56

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Solution

The fourth proportional to 33,071.08, 45,624.90 and 21,131.56 is: 29,153.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,071.08 : 45,624.90 = 21,131.56 : x
  2. Step 2: Convert to fraction form
    33,071.08/45,624.90 = 21,131.56/x
  3. Step 3: Cross multiply
    33,071.08x = 45,624.90 × 21,131.56
  4. Step 4: Simplify right side
    33,071.08x = 964,125,311.84
  5. Step 5: Solve for x
    x = 964,125,311.84/33,071.08
  6. Step 6: Final answer
    x = 29,153.12

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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.