Home / 20,450.04-28,219.44-11,495.84

Finding the Fourth Proportional to 20,450.04, 28,219.44 and 11,495.84

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Solution

The fourth proportional to 20,450.04, 28,219.44 and 11,495.84 is: 15,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.04 : 28,219.44 = 11,495.84 : x
  2. Step 2: Convert to fraction form
    20,450.04/28,219.44 = 11,495.84/x
  3. Step 3: Cross multiply
    20,450.04x = 28,219.44 × 11,495.84
  4. Step 4: Simplify right side
    20,450.04x = 324,406,167.13
  5. Step 5: Solve for x
    x = 324,406,167.13/20,450.04
  6. Step 6: Final answer
    x = 15,863.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.