Home / 31,667.66-47,514.56-13,889.10

Finding the Fourth Proportional to 31,667.66, 47,514.56 and 13,889.10

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Solution

The fourth proportional to 31,667.66, 47,514.56 and 13,889.10 is: 20,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,667.66 : 47,514.56 = 13,889.10 : x
  2. Step 2: Convert to fraction form
    31,667.66/47,514.56 = 13,889.10/x
  3. Step 3: Cross multiply
    31,667.66x = 47,514.56 × 13,889.10
  4. Step 4: Simplify right side
    31,667.66x = 659,934,475.30
  5. Step 5: Solve for x
    x = 659,934,475.30/31,667.66
  6. Step 6: Final answer
    x = 20,839.38

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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.