Home / 31,364.80-47,042.43-9,172.24

Finding the Fourth Proportional to 31,364.80, 47,042.43 and 9,172.24

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Solution

The fourth proportional to 31,364.80, 47,042.43 and 9,172.24 is: 13,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,364.80 : 47,042.43 = 9,172.24 : x
  2. Step 2: Convert to fraction form
    31,364.80/47,042.43 = 9,172.24/x
  3. Step 3: Cross multiply
    31,364.80x = 47,042.43 × 9,172.24
  4. Step 4: Simplify right side
    31,364.80x = 431,484,458.14
  5. Step 5: Solve for x
    x = 431,484,458.14/31,364.80
  6. Step 6: Final answer
    x = 13,756.97

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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.