Home / 31,833.20-47,749.75-8,459.64

Finding the Fourth Proportional to 31,833.20, 47,749.75 and 8,459.64

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Solution

The fourth proportional to 31,833.20, 47,749.75 and 8,459.64 is: 12,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,833.20 : 47,749.75 = 8,459.64 : x
  2. Step 2: Convert to fraction form
    31,833.20/47,749.75 = 8,459.64/x
  3. Step 3: Cross multiply
    31,833.20x = 47,749.75 × 8,459.64
  4. Step 4: Simplify right side
    31,833.20x = 403,945,414.04
  5. Step 5: Solve for x
    x = 403,945,414.04/31,833.20
  6. Step 6: Final answer
    x = 12,689.44

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1.5x scale

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.