Home / 31,940.01-47,918.66-12,219.21

Finding the Fourth Proportional to 31,940.01, 47,918.66 and 12,219.21

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Solution

The fourth proportional to 31,940.01, 47,918.66 and 12,219.21 is: 18,332.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,940.01 : 47,918.66 = 12,219.21 : x
  2. Step 2: Convert to fraction form
    31,940.01/47,918.66 = 12,219.21/x
  3. Step 3: Cross multiply
    31,940.01x = 47,918.66 × 12,219.21
  4. Step 4: Simplify right side
    31,940.01x = 585,528,108.36
  5. Step 5: Solve for x
    x = 585,528,108.36/31,940.01
  6. Step 6: Final answer
    x = 18,332.12

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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.