Home / 20,360.76-28,097.46-13,273.80

Finding the Fourth Proportional to 20,360.76, 28,097.46 and 13,273.80

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Solution

The fourth proportional to 20,360.76, 28,097.46 and 13,273.80 is: 18,317.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.76 : 28,097.46 = 13,273.80 : x
  2. Step 2: Convert to fraction form
    20,360.76/28,097.46 = 13,273.80/x
  3. Step 3: Cross multiply
    20,360.76x = 28,097.46 × 13,273.80
  4. Step 4: Simplify right side
    20,360.76x = 372,960,064.55
  5. Step 5: Solve for x
    x = 372,960,064.55/20,360.76
  6. Step 6: Final answer
    x = 18,317.59

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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.