Home / 20,754.33-31,148.16-10,899.46

Finding the Fourth Proportional to 20,754.33, 31,148.16 and 10,899.46

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Solution

The fourth proportional to 20,754.33, 31,148.16 and 10,899.46 is: 16,357.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754.33 : 31,148.16 = 10,899.46 : x
  2. Step 2: Convert to fraction form
    20,754.33/31,148.16 = 10,899.46/x
  3. Step 3: Cross multiply
    20,754.33x = 31,148.16 × 10,899.46
  4. Step 4: Simplify right side
    20,754.33x = 339,498,123.99
  5. Step 5: Solve for x
    x = 339,498,123.99/20,754.33
  6. Step 6: Final answer
    x = 16,357.94

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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.