Home / 20,135.16-30,195.05-6,623.17

Finding the Fourth Proportional to 20,135.16, 30,195.05 and 6,623.17

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Solution

The fourth proportional to 20,135.16, 30,195.05 and 6,623.17 is: 9,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,135.16 : 30,195.05 = 6,623.17 : x
  2. Step 2: Convert to fraction form
    20,135.16/30,195.05 = 6,623.17/x
  3. Step 3: Cross multiply
    20,135.16x = 30,195.05 × 6,623.17
  4. Step 4: Simplify right side
    20,135.16x = 199,986,840.71
  5. Step 5: Solve for x
    x = 199,986,840.71/20,135.16
  6. Step 6: Final answer
    x = 9,932.22

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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.