Home / 39,273.60-58,838.40-18,451.20

Finding the Fourth Proportional to 39,273.60, 58,838.40 and 18,451.20

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Solution

The fourth proportional to 39,273.60, 58,838.40 and 18,451.20 is: 27,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,273.60 : 58,838.40 = 18,451.20 : x
  2. Step 2: Convert to fraction form
    39,273.60/58,838.40 = 18,451.20/x
  3. Step 3: Cross multiply
    39,273.60x = 58,838.40 × 18,451.20
  4. Step 4: Simplify right side
    39,273.60x = 1,085,639,086.08
  5. Step 5: Solve for x
    x = 1,085,639,086.08/39,273.60
  6. Step 6: Final answer
    x = 27,642.97

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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.