Home / 31,621.05-47,404.04-11,894.31

Finding the Fourth Proportional to 31,621.05, 47,404.04 and 11,894.31

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Solution

The fourth proportional to 31,621.05, 47,404.04 and 11,894.31 is: 17,831.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.05 : 47,404.04 = 11,894.31 : x
  2. Step 2: Convert to fraction form
    31,621.05/47,404.04 = 11,894.31/x
  3. Step 3: Cross multiply
    31,621.05x = 47,404.04 × 11,894.31
  4. Step 4: Simplify right side
    31,621.05x = 563,838,287.54
  5. Step 5: Solve for x
    x = 563,838,287.54/31,621.05
  6. Step 6: Final answer
    x = 17,831.11

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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.