Home / 28,265.37-38,991.48-19,187.57

Finding the Fourth Proportional to 28,265.37, 38,991.48 and 19,187.57

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Solution

The fourth proportional to 28,265.37, 38,991.48 and 19,187.57 is: 26,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.37 : 38,991.48 = 19,187.57 : x
  2. Step 2: Convert to fraction form
    28,265.37/38,991.48 = 19,187.57/x
  3. Step 3: Cross multiply
    28,265.37x = 38,991.48 × 19,187.57
  4. Step 4: Simplify right side
    28,265.37x = 748,151,556.95
  5. Step 5: Solve for x
    x = 748,151,556.95/28,265.37
  6. Step 6: Final answer
    x = 26,468.84

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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.