Home / 31,892.40-47,832.84-12,166.56

Finding the Fourth Proportional to 31,892.40, 47,832.84 and 12,166.56

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Solution

The fourth proportional to 31,892.40, 47,832.84 and 12,166.56 is: 18,247.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,892.40 : 47,832.84 = 12,166.56 : x
  2. Step 2: Convert to fraction form
    31,892.40/47,832.84 = 12,166.56/x
  3. Step 3: Cross multiply
    31,892.40x = 47,832.84 × 12,166.56
  4. Step 4: Simplify right side
    31,892.40x = 581,961,117.83
  5. Step 5: Solve for x
    x = 581,961,117.83/31,892.40
  6. Step 6: Final answer
    x = 18,247.64

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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.