Home / 27,318.95-40,880.88-19,831.17

Finding the Fourth Proportional to 27,318.95, 40,880.88 and 19,831.17

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Solution

The fourth proportional to 27,318.95, 40,880.88 and 19,831.17 is: 29,675.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,318.95 : 40,880.88 = 19,831.17 : x
  2. Step 2: Convert to fraction form
    27,318.95/40,880.88 = 19,831.17/x
  3. Step 3: Cross multiply
    27,318.95x = 40,880.88 × 19,831.17
  4. Step 4: Simplify right side
    27,318.95x = 810,715,681.03
  5. Step 5: Solve for x
    x = 810,715,681.03/27,318.95
  6. Step 6: Final answer
    x = 29,675.95

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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.