Home / 20,950.88-31,455.48-10,569.92

Finding the Fourth Proportional to 20,950.88, 31,455.48 and 10,569.92

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Solution

The fourth proportional to 20,950.88, 31,455.48 and 10,569.92 is: 15,869.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.88 : 31,455.48 = 10,569.92 : x
  2. Step 2: Convert to fraction form
    20,950.88/31,455.48 = 10,569.92/x
  3. Step 3: Cross multiply
    20,950.88x = 31,455.48 × 10,569.92
  4. Step 4: Simplify right side
    20,950.88x = 332,481,907.16
  5. Step 5: Solve for x
    x = 332,481,907.16/20,950.88
  6. Step 6: Final answer
    x = 15,869.59

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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.