Home / 25,860.48-38,791.20-10,276.80

Finding the Fourth Proportional to 25,860.48, 38,791.20 and 10,276.80

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Solution

The fourth proportional to 25,860.48, 38,791.20 and 10,276.80 is: 15,415.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,860.48 : 38,791.20 = 10,276.80 : x
  2. Step 2: Convert to fraction form
    25,860.48/38,791.20 = 10,276.80/x
  3. Step 3: Cross multiply
    25,860.48x = 38,791.20 × 10,276.80
  4. Step 4: Simplify right side
    25,860.48x = 398,649,404.16
  5. Step 5: Solve for x
    x = 398,649,404.16/25,860.48
  6. Step 6: Final answer
    x = 15,415.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.