Home / 20,494,143.29-28,281,868.93-11,673,593.21

Finding the Fourth Proportional to 20,494,143.29, 28,281,868.93 and 11,673,593.21

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Solution

The fourth proportional to 20,494,143.29, 28,281,868.93 and 11,673,593.21 is: 16,109,530.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494,143.29 : 28,281,868.93 = 11,673,593.21 : x
  2. Step 2: Convert to fraction form
    20,494,143.29/28,281,868.93 = 11,673,593.21/x
  3. Step 3: Cross multiply
    20,494,143.29x = 28,281,868.93 × 11,673,593.21
  4. Step 4: Simplify right side
    20,494,143.29x = 330,151,033,107,358
  5. Step 5: Solve for x
    x = 330,151,033,107,358/20,494,143.29
  6. Step 6: Final answer
    x = 16,109,530.83

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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.