Home / 40,287.28-60,425.96-20,580.08

Finding the Fourth Proportional to 40,287.28, 60,425.96 and 20,580.08

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Solution

The fourth proportional to 40,287.28, 60,425.96 and 20,580.08 is: 30,867.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,287.28 : 60,425.96 = 20,580.08 : x
  2. Step 2: Convert to fraction form
    40,287.28/60,425.96 = 20,580.08/x
  3. Step 3: Cross multiply
    40,287.28x = 60,425.96 × 20,580.08
  4. Step 4: Simplify right side
    40,287.28x = 1,243,571,090.88
  5. Step 5: Solve for x
    x = 1,243,571,090.88/40,287.28
  6. Step 6: Final answer
    x = 30,867.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.