Home / 31,902.24-47,855.16-12,182.40

Finding the Fourth Proportional to 31,902.24, 47,855.16 and 12,182.40

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Solution

The fourth proportional to 31,902.24, 47,855.16 and 12,182.40 is: 18,274.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,902.24 : 47,855.16 = 12,182.40 : x
  2. Step 2: Convert to fraction form
    31,902.24/47,855.16 = 12,182.40/x
  3. Step 3: Cross multiply
    31,902.24x = 47,855.16 × 12,182.40
  4. Step 4: Simplify right side
    31,902.24x = 582,990,701.18
  5. Step 5: Solve for x
    x = 582,990,701.18/31,902.24
  6. Step 6: Final answer
    x = 18,274.29

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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.