Home / 28,180.22-38,889.93-15,604.97

Finding the Fourth Proportional to 28,180.22, 38,889.93 and 15,604.97

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Solution

The fourth proportional to 28,180.22, 38,889.93 and 15,604.97 is: 21,535.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.22 : 38,889.93 = 15,604.97 : x
  2. Step 2: Convert to fraction form
    28,180.22/38,889.93 = 15,604.97/x
  3. Step 3: Cross multiply
    28,180.22x = 38,889.93 × 15,604.97
  4. Step 4: Simplify right side
    28,180.22x = 606,875,996.50
  5. Step 5: Solve for x
    x = 606,875,996.50/28,180.22
  6. Step 6: Final answer
    x = 21,535.53

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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.