Home / 35,311.43-48,736.73-20,000.72

Finding the Fourth Proportional to 35,311.43, 48,736.73 and 20,000.72

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Solution

The fourth proportional to 35,311.43, 48,736.73 and 20,000.72 is: 27,604.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,311.43 : 48,736.73 = 20,000.72 : x
  2. Step 2: Convert to fraction form
    35,311.43/48,736.73 = 20,000.72/x
  3. Step 3: Cross multiply
    35,311.43x = 48,736.73 × 20,000.72
  4. Step 4: Simplify right side
    35,311.43x = 974,769,721.66
  5. Step 5: Solve for x
    x = 974,769,721.66/35,311.43
  6. Step 6: Final answer
    x = 27,604.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.