Home / 31,831.12-47,745.82-10,771.02

Finding the Fourth Proportional to 31,831.12, 47,745.82 and 10,771.02

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Solution

The fourth proportional to 31,831.12, 47,745.82 and 10,771.02 is: 16,156.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,831.12 : 47,745.82 = 10,771.02 : x
  2. Step 2: Convert to fraction form
    31,831.12/47,745.82 = 10,771.02/x
  3. Step 3: Cross multiply
    31,831.12x = 47,745.82 × 10,771.02
  4. Step 4: Simplify right side
    31,831.12x = 514,271,155.21
  5. Step 5: Solve for x
    x = 514,271,155.21/31,831.12
  6. Step 6: Final answer
    x = 16,156.24

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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.