Home / 20,537.48-28,341.89-11,339.33

Finding the Fourth Proportional to 20,537.48, 28,341.89 and 11,339.33

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Solution

The fourth proportional to 20,537.48, 28,341.89 and 11,339.33 is: 15,648.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.48 : 28,341.89 = 11,339.33 : x
  2. Step 2: Convert to fraction form
    20,537.48/28,341.89 = 11,339.33/x
  3. Step 3: Cross multiply
    20,537.48x = 28,341.89 × 11,339.33
  4. Step 4: Simplify right side
    20,537.48x = 321,377,845.13
  5. Step 5: Solve for x
    x = 321,377,845.13/20,537.48
  6. Step 6: Final answer
    x = 15,648.36

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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.