Home / 20,935.71-31,401.09-6,892.29

Finding the Fourth Proportional to 20,935.71, 31,401.09 and 6,892.29

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Solution

The fourth proportional to 20,935.71, 31,401.09 and 6,892.29 is: 10,337.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,935.71 : 31,401.09 = 6,892.29 : x
  2. Step 2: Convert to fraction form
    20,935.71/31,401.09 = 6,892.29/x
  3. Step 3: Cross multiply
    20,935.71x = 31,401.09 × 6,892.29
  4. Step 4: Simplify right side
    20,935.71x = 216,425,418.60
  5. Step 5: Solve for x
    x = 216,425,418.60/20,935.71
  6. Step 6: Final answer
    x = 10,337.62

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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.