Home / 28,062.54-38,725.29-15,487.02

Finding the Fourth Proportional to 28,062.54, 38,725.29 and 15,487.02

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Solution

The fourth proportional to 28,062.54, 38,725.29 and 15,487.02 is: 21,371.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,062.54 : 38,725.29 = 15,487.02 : x
  2. Step 2: Convert to fraction form
    28,062.54/38,725.29 = 15,487.02/x
  3. Step 3: Cross multiply
    28,062.54x = 38,725.29 × 15,487.02
  4. Step 4: Simplify right side
    28,062.54x = 599,739,340.74
  5. Step 5: Solve for x
    x = 599,739,340.74/28,062.54
  6. Step 6: Final answer
    x = 21,371.53

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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.