Home / 21,276.51-31,934.45-10,753.94

Finding the Fourth Proportional to 21,276.51, 31,934.45 and 10,753.94

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Solution

The fourth proportional to 21,276.51, 31,934.45 and 10,753.94 is: 16,140.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.51 : 31,934.45 = 10,753.94 : x
  2. Step 2: Convert to fraction form
    21,276.51/31,934.45 = 10,753.94/x
  3. Step 3: Cross multiply
    21,276.51x = 31,934.45 × 10,753.94
  4. Step 4: Simplify right side
    21,276.51x = 343,420,945.79
  5. Step 5: Solve for x
    x = 343,420,945.79/21,276.51
  6. Step 6: Final answer
    x = 16,140.85

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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.