Home / 20,136.66-30,206.49-5,345.25

Finding the Fourth Proportional to 20,136.66, 30,206.49 and 5,345.25

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Solution

The fourth proportional to 20,136.66, 30,206.49 and 5,345.25 is: 8,018.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.66 : 30,206.49 = 5,345.25 : x
  2. Step 2: Convert to fraction form
    20,136.66/30,206.49 = 5,345.25/x
  3. Step 3: Cross multiply
    20,136.66x = 30,206.49 × 5,345.25
  4. Step 4: Simplify right side
    20,136.66x = 161,461,240.67
  5. Step 5: Solve for x
    x = 161,461,240.67/20,136.66
  6. Step 6: Final answer
    x = 8,018.27

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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.