Home / 40,831.28-61,270.31-15,868.10

Finding the Fourth Proportional to 40,831.28, 61,270.31 and 15,868.10

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Solution

The fourth proportional to 40,831.28, 61,270.31 and 15,868.10 is: 23,811.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,831.28 : 61,270.31 = 15,868.10 : x
  2. Step 2: Convert to fraction form
    40,831.28/61,270.31 = 15,868.10/x
  3. Step 3: Cross multiply
    40,831.28x = 61,270.31 × 15,868.10
  4. Step 4: Simplify right side
    40,831.28x = 972,243,139.43
  5. Step 5: Solve for x
    x = 972,243,139.43/40,831.28
  6. Step 6: Final answer
    x = 23,811.23

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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.