Home / 39,789.18-59,684.46-13,494.60

Finding the Fourth Proportional to 39,789.18, 59,684.46 and 13,494.60

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Solution

The fourth proportional to 39,789.18, 59,684.46 and 13,494.60 is: 20,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,789.18 : 59,684.46 = 13,494.60 : x
  2. Step 2: Convert to fraction form
    39,789.18/59,684.46 = 13,494.60/x
  3. Step 3: Cross multiply
    39,789.18x = 59,684.46 × 13,494.60
  4. Step 4: Simplify right side
    39,789.18x = 805,417,913.92
  5. Step 5: Solve for x
    x = 805,417,913.92/39,789.18
  6. Step 6: Final answer
    x = 20,242.13

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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.