Home / 20,007.28-30,029.74-10,153.62

Finding the Fourth Proportional to 20,007.28, 30,029.74 and 10,153.62

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Solution

The fourth proportional to 20,007.28, 30,029.74 and 10,153.62 is: 15,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.28 : 30,029.74 = 10,153.62 : x
  2. Step 2: Convert to fraction form
    20,007.28/30,029.74 = 10,153.62/x
  3. Step 3: Cross multiply
    20,007.28x = 30,029.74 × 10,153.62
  4. Step 4: Simplify right side
    20,007.28x = 304,910,568.66
  5. Step 5: Solve for x
    x = 304,910,568.66/20,007.28
  6. Step 6: Final answer
    x = 15,239.98

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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.