Home / 20,952.39-31,433.22-6,916.76

Finding the Fourth Proportional to 20,952.39, 31,433.22 and 6,916.76

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Solution

The fourth proportional to 20,952.39, 31,433.22 and 6,916.76 is: 10,376.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,952.39 : 31,433.22 = 6,916.76 : x
  2. Step 2: Convert to fraction form
    20,952.39/31,433.22 = 6,916.76/x
  3. Step 3: Cross multiply
    20,952.39x = 31,433.22 × 6,916.76
  4. Step 4: Simplify right side
    20,952.39x = 217,415,881.60
  5. Step 5: Solve for x
    x = 217,415,881.60/20,952.39
  6. Step 6: Final answer
    x = 10,376.66

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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.