Home / 31,990.52-48,007.20-11,214.02

Finding the Fourth Proportional to 31,990.52, 48,007.20 and 11,214.02

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Solution

The fourth proportional to 31,990.52, 48,007.20 and 11,214.02 is: 16,828.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,990.52 : 48,007.20 = 11,214.02 : x
  2. Step 2: Convert to fraction form
    31,990.52/48,007.20 = 11,214.02/x
  3. Step 3: Cross multiply
    31,990.52x = 48,007.20 × 11,214.02
  4. Step 4: Simplify right side
    31,990.52x = 538,353,700.94
  5. Step 5: Solve for x
    x = 538,353,700.94/31,990.52
  6. Step 6: Final answer
    x = 16,828.54

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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.