Home / 39,282.64-54,209.48-21,618.64

Finding the Fourth Proportional to 39,282.64, 54,209.48 and 21,618.64

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Solution

The fourth proportional to 39,282.64, 54,209.48 and 21,618.64 is: 29,833.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,282.64 : 54,209.48 = 21,618.64 : x
  2. Step 2: Convert to fraction form
    39,282.64/54,209.48 = 21,618.64/x
  3. Step 3: Cross multiply
    39,282.64x = 54,209.48 × 21,618.64
  4. Step 4: Simplify right side
    39,282.64x = 1,171,935,232.71
  5. Step 5: Solve for x
    x = 1,171,935,232.71/39,282.64
  6. Step 6: Final answer
    x = 29,833.41

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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.