Home / 31,414.64-47,121.98-10,652.72

Finding the Fourth Proportional to 31,414.64, 47,121.98 and 10,652.72

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Solution

The fourth proportional to 31,414.64, 47,121.98 and 10,652.72 is: 15,979.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,414.64 : 47,121.98 = 10,652.72 : x
  2. Step 2: Convert to fraction form
    31,414.64/47,121.98 = 10,652.72/x
  3. Step 3: Cross multiply
    31,414.64x = 47,121.98 × 10,652.72
  4. Step 4: Simplify right side
    31,414.64x = 501,977,258.79
  5. Step 5: Solve for x
    x = 501,977,258.79/31,414.64
  6. Step 6: Final answer
    x = 15,979.09

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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.