Home / 20,790.69-31,198.33-7,652.28

Finding the Fourth Proportional to 20,790.69, 31,198.33 and 7,652.28

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Solution

The fourth proportional to 20,790.69, 31,198.33 and 7,652.28 is: 11,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790.69 : 31,198.33 = 7,652.28 : x
  2. Step 2: Convert to fraction form
    20,790.69/31,198.33 = 7,652.28/x
  3. Step 3: Cross multiply
    20,790.69x = 31,198.33 × 7,652.28
  4. Step 4: Simplify right side
    20,790.69x = 238,738,483.25
  5. Step 5: Solve for x
    x = 238,738,483.25/20,790.69
  6. Step 6: Final answer
    x = 11,482.95

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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.