Home / 31,921.21-47,903.67-11,144.71

Finding the Fourth Proportional to 31,921.21, 47,903.67 and 11,144.71

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Solution

The fourth proportional to 31,921.21, 47,903.67 and 11,144.71 is: 16,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.21 : 47,903.67 = 11,144.71 : x
  2. Step 2: Convert to fraction form
    31,921.21/47,903.67 = 11,144.71/x
  3. Step 3: Cross multiply
    31,921.21x = 47,903.67 × 11,144.71
  4. Step 4: Simplify right side
    31,921.21x = 533,872,510.09
  5. Step 5: Solve for x
    x = 533,872,510.09/31,921.21
  6. Step 6: Final answer
    x = 16,724.70

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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.