Home / 25,691.99-35,455.19-15,081.80

Finding the Fourth Proportional to 25,691.99, 35,455.19 and 15,081.80

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Solution

The fourth proportional to 25,691.99, 35,455.19 and 15,081.80 is: 20,813.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.99 : 35,455.19 = 15,081.80 : x
  2. Step 2: Convert to fraction form
    25,691.99/35,455.19 = 15,081.80/x
  3. Step 3: Cross multiply
    25,691.99x = 35,455.19 × 15,081.80
  4. Step 4: Simplify right side
    25,691.99x = 534,727,831.86
  5. Step 5: Solve for x
    x = 534,727,831.86/25,691.99
  6. Step 6: Final answer
    x = 20,813.02

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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.