Home / 20,156.03-30,192.46-11,810.70

Finding the Fourth Proportional to 20,156.03, 30,192.46 and 11,810.70

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Solution

The fourth proportional to 20,156.03, 30,192.46 and 11,810.70 is: 17,691.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.03 : 30,192.46 = 11,810.70 : x
  2. Step 2: Convert to fraction form
    20,156.03/30,192.46 = 11,810.70/x
  3. Step 3: Cross multiply
    20,156.03x = 30,192.46 × 11,810.70
  4. Step 4: Simplify right side
    20,156.03x = 356,594,087.32
  5. Step 5: Solve for x
    x = 356,594,087.32/20,156.03
  6. Step 6: Final answer
    x = 17,691.68

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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.