Home / 39,869.61-59,722.39-28,798.53

Finding the Fourth Proportional to 39,869.61, 59,722.39 and 28,798.53

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Solution

The fourth proportional to 39,869.61, 59,722.39 and 28,798.53 is: 43,138.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,869.61 : 59,722.39 = 28,798.53 : x
  2. Step 2: Convert to fraction form
    39,869.61/59,722.39 = 28,798.53/x
  3. Step 3: Cross multiply
    39,869.61x = 59,722.39 × 28,798.53
  4. Step 4: Simplify right side
    39,869.61x = 1,719,917,040.09
  5. Step 5: Solve for x
    x = 1,719,917,040.09/39,869.61
  6. Step 6: Final answer
    x = 43,138.55

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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.