Home / 20,850.48-31,271.99-10,317.11

Finding the Fourth Proportional to 20,850.48, 31,271.99 and 10,317.11

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Solution

The fourth proportional to 20,850.48, 31,271.99 and 10,317.11 is: 15,473.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.48 : 31,271.99 = 10,317.11 : x
  2. Step 2: Convert to fraction form
    20,850.48/31,271.99 = 10,317.11/x
  3. Step 3: Cross multiply
    20,850.48x = 31,271.99 × 10,317.11
  4. Step 4: Simplify right side
    20,850.48x = 322,636,352.80
  5. Step 5: Solve for x
    x = 322,636,352.80/20,850.48
  6. Step 6: Final answer
    x = 15,473.81

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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.