Home / 39,911.47-59,867.16-11,831.74

Finding the Fourth Proportional to 39,911.47, 59,867.16 and 11,831.74

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Solution

The fourth proportional to 39,911.47, 59,867.16 and 11,831.74 is: 17,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,911.47 : 59,867.16 = 11,831.74 : x
  2. Step 2: Convert to fraction form
    39,911.47/59,867.16 = 11,831.74/x
  3. Step 3: Cross multiply
    39,911.47x = 59,867.16 × 11,831.74
  4. Step 4: Simplify right side
    39,911.47x = 708,332,671.66
  5. Step 5: Solve for x
    x = 708,332,671.66/39,911.47
  6. Step 6: Final answer
    x = 17,747.60

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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.