Home / 31,721.79-47,583.46-10,662.14

Finding the Fourth Proportional to 31,721.79, 47,583.46 and 10,662.14

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Solution

The fourth proportional to 31,721.79, 47,583.46 and 10,662.14 is: 15,993.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.79 : 47,583.46 = 10,662.14 : x
  2. Step 2: Convert to fraction form
    31,721.79/47,583.46 = 10,662.14/x
  3. Step 3: Cross multiply
    31,721.79x = 47,583.46 × 10,662.14
  4. Step 4: Simplify right side
    31,721.79x = 507,341,512.20
  5. Step 5: Solve for x
    x = 507,341,512.20/31,721.79
  6. Step 6: Final answer
    x = 15,993.47

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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.