Home / 39,864.64-59,796.36-12,162.64

Finding the Fourth Proportional to 39,864.64, 59,796.36 and 12,162.64

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Solution

The fourth proportional to 39,864.64, 59,796.36 and 12,162.64 is: 18,243.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,864.64 : 59,796.36 = 12,162.64 : x
  2. Step 2: Convert to fraction form
    39,864.64/59,796.36 = 12,162.64/x
  3. Step 3: Cross multiply
    39,864.64x = 59,796.36 × 12,162.64
  4. Step 4: Simplify right side
    39,864.64x = 727,281,599.99
  5. Step 5: Solve for x
    x = 727,281,599.99/39,864.64
  6. Step 6: Final answer
    x = 18,243.78

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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.