Home / 39,919.43-59,825.94-18,865.06

Finding the Fourth Proportional to 39,919.43, 59,825.94 and 18,865.06

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Solution

The fourth proportional to 39,919.43, 59,825.94 and 18,865.06 is: 28,272.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.43 : 59,825.94 = 18,865.06 : x
  2. Step 2: Convert to fraction form
    39,919.43/59,825.94 = 18,865.06/x
  3. Step 3: Cross multiply
    39,919.43x = 59,825.94 × 18,865.06
  4. Step 4: Simplify right side
    39,919.43x = 1,128,619,833.46
  5. Step 5: Solve for x
    x = 1,128,619,833.46/39,919.43
  6. Step 6: Final answer
    x = 28,272.45

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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.