Home / 32,121.50-48,162-15,485.72

Finding the Fourth Proportional to 32,121.50, 48,162 and 15,485.72

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Solution

The fourth proportional to 32,121.50, 48,162 and 15,485.72 is: 23,218.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,121.50 : 48,162 = 15,485.72 : x
  2. Step 2: Convert to fraction form
    32,121.50/48,162 = 15,485.72/x
  3. Step 3: Cross multiply
    32,121.50x = 48,162 × 15,485.72
  4. Step 4: Simplify right side
    32,121.50x = 745,823,246.64
  5. Step 5: Solve for x
    x = 745,823,246.64/32,121.50
  6. Step 6: Final answer
    x = 23,218.82

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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.