Home / 25,931.20-38,897.60-10,135.60

Finding the Fourth Proportional to 25,931.20, 38,897.60 and 10,135.60

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Solution

The fourth proportional to 25,931.20, 38,897.60 and 10,135.60 is: 15,203.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,931.20 : 38,897.60 = 10,135.60 : x
  2. Step 2: Convert to fraction form
    25,931.20/38,897.60 = 10,135.60/x
  3. Step 3: Cross multiply
    25,931.20x = 38,897.60 × 10,135.60
  4. Step 4: Simplify right side
    25,931.20x = 394,250,514.56
  5. Step 5: Solve for x
    x = 394,250,514.56/25,931.20
  6. Step 6: Final answer
    x = 15,203.71

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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.