Home / 32,728.11-45,169.01-19,978.62

Finding the Fourth Proportional to 32,728.11, 45,169.01 and 19,978.62

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Solution

The fourth proportional to 32,728.11, 45,169.01 and 19,978.62 is: 27,573.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,728.11 : 45,169.01 = 19,978.62 : x
  2. Step 2: Convert to fraction form
    32,728.11/45,169.01 = 19,978.62/x
  3. Step 3: Cross multiply
    32,728.11x = 45,169.01 × 19,978.62
  4. Step 4: Simplify right side
    32,728.11x = 902,414,486.57
  5. Step 5: Solve for x
    x = 902,414,486.57/32,728.11
  6. Step 6: Final answer
    x = 27,573.07

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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.