Home / 31,723.35-47,581.31-12,747.22

Finding the Fourth Proportional to 31,723.35, 47,581.31 and 12,747.22

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Solution

The fourth proportional to 31,723.35, 47,581.31 and 12,747.22 is: 19,119.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,723.35 : 47,581.31 = 12,747.22 : x
  2. Step 2: Convert to fraction form
    31,723.35/47,581.31 = 12,747.22/x
  3. Step 3: Cross multiply
    31,723.35x = 47,581.31 × 12,747.22
  4. Step 4: Simplify right side
    31,723.35x = 606,529,426.46
  5. Step 5: Solve for x
    x = 606,529,426.46/31,723.35
  6. Step 6: Final answer
    x = 19,119.34

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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.