Home / 31,749.88-47,560.22-20,622.84

Finding the Fourth Proportional to 31,749.88, 47,560.22 and 20,622.84

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Solution

The fourth proportional to 31,749.88, 47,560.22 and 20,622.84 is: 30,892.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,749.88 : 47,560.22 = 20,622.84 : x
  2. Step 2: Convert to fraction form
    31,749.88/47,560.22 = 20,622.84/x
  3. Step 3: Cross multiply
    31,749.88x = 47,560.22 × 20,622.84
  4. Step 4: Simplify right side
    31,749.88x = 980,826,807.42
  5. Step 5: Solve for x
    x = 980,826,807.42/31,749.88
  6. Step 6: Final answer
    x = 30,892.30

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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.