Home / 31,623.20-47,439.68-11,903.16

Finding the Fourth Proportional to 31,623.20, 47,439.68 and 11,903.16

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Solution

The fourth proportional to 31,623.20, 47,439.68 and 11,903.16 is: 17,856.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,623.20 : 47,439.68 = 11,903.16 : x
  2. Step 2: Convert to fraction form
    31,623.20/47,439.68 = 11,903.16/x
  3. Step 3: Cross multiply
    31,623.20x = 47,439.68 × 11,903.16
  4. Step 4: Simplify right side
    31,623.20x = 564,682,101.39
  5. Step 5: Solve for x
    x = 564,682,101.39/31,623.20
  6. Step 6: Final answer
    x = 17,856.58

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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.