Home / 19,783.85-27,301.71-10,831.90

Finding the Fourth Proportional to 19,783.85, 27,301.71 and 10,831.90

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Solution

The fourth proportional to 19,783.85, 27,301.71 and 10,831.90 is: 14,948.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,783.85 : 27,301.71 = 10,831.90 : x
  2. Step 2: Convert to fraction form
    19,783.85/27,301.71 = 10,831.90/x
  3. Step 3: Cross multiply
    19,783.85x = 27,301.71 × 10,831.90
  4. Step 4: Simplify right side
    19,783.85x = 295,729,431.96
  5. Step 5: Solve for x
    x = 295,729,431.96/19,783.85
  6. Step 6: Final answer
    x = 14,948.03

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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.