Home / 20,273.31-27,975.65-12,719.25

Finding the Fourth Proportional to 20,273.31, 27,975.65 and 12,719.25

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Solution

The fourth proportional to 20,273.31, 27,975.65 and 12,719.25 is: 17,551.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,273.31 : 27,975.65 = 12,719.25 : x
  2. Step 2: Convert to fraction form
    20,273.31/27,975.65 = 12,719.25/x
  3. Step 3: Cross multiply
    20,273.31x = 27,975.65 × 12,719.25
  4. Step 4: Simplify right side
    20,273.31x = 355,829,222.67
  5. Step 5: Solve for x
    x = 355,829,222.67/20,273.31
  6. Step 6: Final answer
    x = 17,551.61

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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.