Home / 31,425.92-47,131.56-13,886.16

Finding the Fourth Proportional to 31,425.92, 47,131.56 and 13,886.16

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Solution

The fourth proportional to 31,425.92, 47,131.56 and 13,886.16 is: 20,826.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,425.92 : 47,131.56 = 13,886.16 : x
  2. Step 2: Convert to fraction form
    31,425.92/47,131.56 = 13,886.16/x
  3. Step 3: Cross multiply
    31,425.92x = 47,131.56 × 13,886.16
  4. Step 4: Simplify right side
    31,425.92x = 654,476,383.21
  5. Step 5: Solve for x
    x = 654,476,383.21/31,425.92
  6. Step 6: Final answer
    x = 20,826.01

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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.