Home / 45,974.48-68,926.62-20,997.20

Finding the Fourth Proportional to 45,974.48, 68,926.62 and 20,997.20

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Solution

The fourth proportional to 45,974.48, 68,926.62 and 20,997.20 is: 31,479.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,974.48 : 68,926.62 = 20,997.20 : x
  2. Step 2: Convert to fraction form
    45,974.48/68,926.62 = 20,997.20/x
  3. Step 3: Cross multiply
    45,974.48x = 68,926.62 × 20,997.20
  4. Step 4: Simplify right side
    45,974.48x = 1,447,266,025.46
  5. Step 5: Solve for x
    x = 1,447,266,025.46/45,974.48
  6. Step 6: Final answer
    x = 31,479.77

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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.