Home / 33,060.69-45,601.16-21,118.68

Finding the Fourth Proportional to 33,060.69, 45,601.16 and 21,118.68

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Solution

The fourth proportional to 33,060.69, 45,601.16 and 21,118.68 is: 29,129.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,060.69 : 45,601.16 = 21,118.68 : x
  2. Step 2: Convert to fraction form
    33,060.69/45,601.16 = 21,118.68/x
  3. Step 3: Cross multiply
    33,060.69x = 45,601.16 × 21,118.68
  4. Step 4: Simplify right side
    33,060.69x = 963,036,200.08
  5. Step 5: Solve for x
    x = 963,036,200.08/33,060.69
  6. Step 6: Final answer
    x = 29,129.34

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Double scale
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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.