Home / 28,193.47-38,906.97-15,447.48

Finding the Fourth Proportional to 28,193.47, 38,906.97 and 15,447.48

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Solution

The fourth proportional to 28,193.47, 38,906.97 and 15,447.48 is: 21,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.47 : 38,906.97 = 15,447.48 : x
  2. Step 2: Convert to fraction form
    28,193.47/38,906.97 = 15,447.48/x
  3. Step 3: Cross multiply
    28,193.47x = 38,906.97 × 15,447.48
  4. Step 4: Simplify right side
    28,193.47x = 601,014,437.11
  5. Step 5: Solve for x
    x = 601,014,437.11/28,193.47
  6. Step 6: Final answer
    x = 21,317.51

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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.