Home / 33,087.81-45,661.20-17,980.65

Finding the Fourth Proportional to 33,087.81, 45,661.20 and 17,980.65

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Solution

The fourth proportional to 33,087.81, 45,661.20 and 17,980.65 is: 24,813.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,087.81 : 45,661.20 = 17,980.65 : x
  2. Step 2: Convert to fraction form
    33,087.81/45,661.20 = 17,980.65/x
  3. Step 3: Cross multiply
    33,087.81x = 45,661.20 × 17,980.65
  4. Step 4: Simplify right side
    33,087.81x = 821,018,055.78
  5. Step 5: Solve for x
    x = 821,018,055.78/33,087.81
  6. Step 6: Final answer
    x = 24,813.31

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Double scale
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Similar ratio
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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.