Home / 31,719.70-47,582.79-10,940.50

Finding the Fourth Proportional to 31,719.70, 47,582.79 and 10,940.50

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Solution

The fourth proportional to 31,719.70, 47,582.79 and 10,940.50 is: 16,411.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,719.70 : 47,582.79 = 10,940.50 : x
  2. Step 2: Convert to fraction form
    31,719.70/47,582.79 = 10,940.50/x
  3. Step 3: Cross multiply
    31,719.70x = 47,582.79 × 10,940.50
  4. Step 4: Simplify right side
    31,719.70x = 520,579,514.00
  5. Step 5: Solve for x
    x = 520,579,514.00/31,719.70
  6. Step 6: Final answer
    x = 16,411.87

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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.