Home / 39,003.42-53,831.07-28,998.30

Finding the Fourth Proportional to 39,003.42, 53,831.07 and 28,998.30

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Solution

The fourth proportional to 39,003.42, 53,831.07 and 28,998.30 is: 40,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,003.42 : 53,831.07 = 28,998.30 : x
  2. Step 2: Convert to fraction form
    39,003.42/53,831.07 = 28,998.30/x
  3. Step 3: Cross multiply
    39,003.42x = 53,831.07 × 28,998.30
  4. Step 4: Simplify right side
    39,003.42x = 1,561,009,517.18
  5. Step 5: Solve for x
    x = 1,561,009,517.18/39,003.42
  6. Step 6: Final answer
    x = 40,022.38

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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.