Home / 20,753.33-31,146.66-10,898.46

Finding the Fourth Proportional to 20,753.33, 31,146.66 and 10,898.46

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Solution

The fourth proportional to 20,753.33, 31,146.66 and 10,898.46 is: 16,356.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753.33 : 31,146.66 = 10,898.46 : x
  2. Step 2: Convert to fraction form
    20,753.33/31,146.66 = 10,898.46/x
  3. Step 3: Cross multiply
    20,753.33x = 31,146.66 × 10,898.46
  4. Step 4: Simplify right side
    20,753.33x = 339,450,628.14
  5. Step 5: Solve for x
    x = 339,450,628.14/20,753.33
  6. Step 6: Final answer
    x = 16,356.45

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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.