Home / 31,445.37-47,168.06-8,071.81

Finding the Fourth Proportional to 31,445.37, 47,168.06 and 8,071.81

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Solution

The fourth proportional to 31,445.37, 47,168.06 and 8,071.81 is: 12,107.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,445.37 : 47,168.06 = 8,071.81 : x
  2. Step 2: Convert to fraction form
    31,445.37/47,168.06 = 8,071.81/x
  3. Step 3: Cross multiply
    31,445.37x = 47,168.06 × 8,071.81
  4. Step 4: Simplify right side
    31,445.37x = 380,731,460.11
  5. Step 5: Solve for x
    x = 380,731,460.11/31,445.37
  6. Step 6: Final answer
    x = 12,107.71

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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.