Home / 39,993.47-59,989.45-11,932.55

Finding the Fourth Proportional to 39,993.47, 59,989.45 and 11,932.55

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Solution

The fourth proportional to 39,993.47, 59,989.45 and 11,932.55 is: 17,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,993.47 : 59,989.45 = 11,932.55 : x
  2. Step 2: Convert to fraction form
    39,993.47/59,989.45 = 11,932.55/x
  3. Step 3: Cross multiply
    39,993.47x = 59,989.45 × 11,932.55
  4. Step 4: Simplify right side
    39,993.47x = 715,827,265.45
  5. Step 5: Solve for x
    x = 715,827,265.45/39,993.47
  6. Step 6: Final answer
    x = 17,898.60

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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.