Home / 31,688.28-47,523.78-10,629.09

Finding the Fourth Proportional to 31,688.28, 47,523.78 and 10,629.09

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Solution

The fourth proportional to 31,688.28, 47,523.78 and 10,629.09 is: 15,940.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.28 : 47,523.78 = 10,629.09 : x
  2. Step 2: Convert to fraction form
    31,688.28/47,523.78 = 10,629.09/x
  3. Step 3: Cross multiply
    31,688.28x = 47,523.78 × 10,629.09
  4. Step 4: Simplify right side
    31,688.28x = 505,134,534.76
  5. Step 5: Solve for x
    x = 505,134,534.76/31,688.28
  6. Step 6: Final answer
    x = 15,940.74

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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.