Home / 20,358.03-28,095.23-11,408.41

Finding the Fourth Proportional to 20,358.03, 28,095.23 and 11,408.41

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Solution

The fourth proportional to 20,358.03, 28,095.23 and 11,408.41 is: 15,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.03 : 28,095.23 = 11,408.41 : x
  2. Step 2: Convert to fraction form
    20,358.03/28,095.23 = 11,408.41/x
  3. Step 3: Cross multiply
    20,358.03x = 28,095.23 × 11,408.41
  4. Step 4: Simplify right side
    20,358.03x = 320,521,934.44
  5. Step 5: Solve for x
    x = 320,521,934.44/20,358.03
  6. Step 6: Final answer
    x = 15,744.25

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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.