Home / 31,672.96-47,472.72-11,938.88

Finding the Fourth Proportional to 31,672.96, 47,472.72 and 11,938.88

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Solution

The fourth proportional to 31,672.96, 47,472.72 and 11,938.88 is: 17,894.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,672.96 : 47,472.72 = 11,938.88 : x
  2. Step 2: Convert to fraction form
    31,672.96/47,472.72 = 11,938.88/x
  3. Step 3: Cross multiply
    31,672.96x = 47,472.72 × 11,938.88
  4. Step 4: Simplify right side
    31,672.96x = 566,771,107.35
  5. Step 5: Solve for x
    x = 566,771,107.35/31,672.96
  6. Step 6: Final answer
    x = 17,894.48

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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.