Home / 20,143.31-30,215.25-6,995.99

Finding the Fourth Proportional to 20,143.31, 30,215.25 and 6,995.99

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Solution

The fourth proportional to 20,143.31, 30,215.25 and 6,995.99 is: 10,494.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143.31 : 30,215.25 = 6,995.99 : x
  2. Step 2: Convert to fraction form
    20,143.31/30,215.25 = 6,995.99/x
  3. Step 3: Cross multiply
    20,143.31x = 30,215.25 × 6,995.99
  4. Step 4: Simplify right side
    20,143.31x = 211,385,435.77
  5. Step 5: Solve for x
    x = 211,385,435.77/20,143.31
  6. Step 6: Final answer
    x = 10,494.08

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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.