Home / 31,679.43-47,529.71-10,621.56

Finding the Fourth Proportional to 31,679.43, 47,529.71 and 10,621.56

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Solution

The fourth proportional to 31,679.43, 47,529.71 and 10,621.56 is: 15,935.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,679.43 : 47,529.71 = 10,621.56 : x
  2. Step 2: Convert to fraction form
    31,679.43/47,529.71 = 10,621.56/x
  3. Step 3: Cross multiply
    31,679.43x = 47,529.71 × 10,621.56
  4. Step 4: Simplify right side
    31,679.43x = 504,839,666.55
  5. Step 5: Solve for x
    x = 504,839,666.55/31,679.43
  6. Step 6: Final answer
    x = 15,935.88

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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.