Home / 31,391.40-47,087.64-8,018.04

Finding the Fourth Proportional to 31,391.40, 47,087.64 and 8,018.04

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Solution

The fourth proportional to 31,391.40, 47,087.64 and 8,018.04 is: 12,027.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,391.40 : 47,087.64 = 8,018.04 : x
  2. Step 2: Convert to fraction form
    31,391.40/47,087.64 = 8,018.04/x
  3. Step 3: Cross multiply
    31,391.40x = 47,087.64 × 8,018.04
  4. Step 4: Simplify right side
    31,391.40x = 377,550,581.03
  5. Step 5: Solve for x
    x = 377,550,581.03/31,391.40
  6. Step 6: Final answer
    x = 12,027.20

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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.