Home / 40,929.70-61,433.52-21,222.40

Finding the Fourth Proportional to 40,929.70, 61,433.52 and 21,222.40

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Solution

The fourth proportional to 40,929.70, 61,433.52 and 21,222.40 is: 31,853.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,929.70 : 61,433.52 = 21,222.40 : x
  2. Step 2: Convert to fraction form
    40,929.70/61,433.52 = 21,222.40/x
  3. Step 3: Cross multiply
    40,929.70x = 61,433.52 × 21,222.40
  4. Step 4: Simplify right side
    40,929.70x = 1,303,766,734.85
  5. Step 5: Solve for x
    x = 1,303,766,734.85/40,929.70
  6. Step 6: Final answer
    x = 31,853.81

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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.