Home / 19,831.55-27,369.29-10,880.80

Finding the Fourth Proportional to 19,831.55, 27,369.29 and 10,880.80

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Solution

The fourth proportional to 19,831.55, 27,369.29 and 10,880.80 is: 15,016.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.55 : 27,369.29 = 10,880.80 : x
  2. Step 2: Convert to fraction form
    19,831.55/27,369.29 = 10,880.80/x
  3. Step 3: Cross multiply
    19,831.55x = 27,369.29 × 10,880.80
  4. Step 4: Simplify right side
    19,831.55x = 297,799,729.41
  5. Step 5: Solve for x
    x = 297,799,729.41/19,831.55
  6. Step 6: Final answer
    x = 15,016.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.