Home / 20,645.33-28,502.37-13,592.25

Finding the Fourth Proportional to 20,645.33, 28,502.37 and 13,592.25

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Solution

The fourth proportional to 20,645.33, 28,502.37 and 13,592.25 is: 18,765.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,645.33 : 28,502.37 = 13,592.25 : x
  2. Step 2: Convert to fraction form
    20,645.33/28,502.37 = 13,592.25/x
  3. Step 3: Cross multiply
    20,645.33x = 28,502.37 × 13,592.25
  4. Step 4: Simplify right side
    20,645.33x = 387,411,338.63
  5. Step 5: Solve for x
    x = 387,411,338.63/20,645.33
  6. Step 6: Final answer
    x = 18,765.09

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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.