Home / 31,724.89-47,578.08-10,662.55

Finding the Fourth Proportional to 31,724.89, 47,578.08 and 10,662.55

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Solution

The fourth proportional to 31,724.89, 47,578.08 and 10,662.55 is: 15,990.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,724.89 : 47,578.08 = 10,662.55 : x
  2. Step 2: Convert to fraction form
    31,724.89/47,578.08 = 10,662.55/x
  3. Step 3: Cross multiply
    31,724.89x = 47,578.08 × 10,662.55
  4. Step 4: Simplify right side
    31,724.89x = 507,303,656.90
  5. Step 5: Solve for x
    x = 507,303,656.90/31,724.89
  6. Step 6: Final answer
    x = 15,990.71

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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.