Home / 20,007.75-30,029.82-10,655.61

Finding the Fourth Proportional to 20,007.75, 30,029.82 and 10,655.61

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Solution

The fourth proportional to 20,007.75, 30,029.82 and 10,655.61 is: 15,993.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.75 : 30,029.82 = 10,655.61 : x
  2. Step 2: Convert to fraction form
    20,007.75/30,029.82 = 10,655.61/x
  3. Step 3: Cross multiply
    20,007.75x = 30,029.82 × 10,655.61
  4. Step 4: Simplify right side
    20,007.75x = 319,986,050.29
  5. Step 5: Solve for x
    x = 319,986,050.29/20,007.75
  6. Step 6: Final answer
    x = 15,993.11

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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.