Home / 32,974.89-49,443.71-12,990.57

Finding the Fourth Proportional to 32,974.89, 49,443.71 and 12,990.57

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Solution

The fourth proportional to 32,974.89, 49,443.71 and 12,990.57 is: 19,478.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,974.89 : 49,443.71 = 12,990.57 : x
  2. Step 2: Convert to fraction form
    32,974.89/49,443.71 = 12,990.57/x
  3. Step 3: Cross multiply
    32,974.89x = 49,443.71 × 12,990.57
  4. Step 4: Simplify right side
    32,974.89x = 642,301,910.86
  5. Step 5: Solve for x
    x = 642,301,910.86/32,974.89
  6. Step 6: Final answer
    x = 19,478.52

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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.