Home / 31,588.36-47,380.92-11,865.40

Finding the Fourth Proportional to 31,588.36, 47,380.92 and 11,865.40

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Solution

The fourth proportional to 31,588.36, 47,380.92 and 11,865.40 is: 17,797.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,588.36 : 47,380.92 = 11,865.40 : x
  2. Step 2: Convert to fraction form
    31,588.36/47,380.92 = 11,865.40/x
  3. Step 3: Cross multiply
    31,588.36x = 47,380.92 × 11,865.40
  4. Step 4: Simplify right side
    31,588.36x = 562,193,568.17
  5. Step 5: Solve for x
    x = 562,193,568.17/31,588.36
  6. Step 6: Final answer
    x = 17,797.49

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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.