Home / 31,917.34-47,881.71-10,856.30

Finding the Fourth Proportional to 31,917.34, 47,881.71 and 10,856.30

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Solution

The fourth proportional to 31,917.34, 47,881.71 and 10,856.30 is: 16,286.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,917.34 : 47,881.71 = 10,856.30 : x
  2. Step 2: Convert to fraction form
    31,917.34/47,881.71 = 10,856.30/x
  3. Step 3: Cross multiply
    31,917.34x = 47,881.71 × 10,856.30
  4. Step 4: Simplify right side
    31,917.34x = 519,818,327.98
  5. Step 5: Solve for x
    x = 519,818,327.98/31,917.34
  6. Step 6: Final answer
    x = 16,286.39

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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.