Home / 25,995.86-35,831.96-20,320.60

Finding the Fourth Proportional to 25,995.86, 35,831.96 and 20,320.60

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Solution

The fourth proportional to 25,995.86, 35,831.96 and 20,320.60 is: 28,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,995.86 : 35,831.96 = 20,320.60 : x
  2. Step 2: Convert to fraction form
    25,995.86/35,831.96 = 20,320.60/x
  3. Step 3: Cross multiply
    25,995.86x = 35,831.96 × 20,320.60
  4. Step 4: Simplify right side
    25,995.86x = 728,126,926.38
  5. Step 5: Solve for x
    x = 728,126,926.38/25,995.86
  6. Step 6: Final answer
    x = 28,009.34

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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.