Home / 32,831.94-45,309.78-20,081.13

Finding the Fourth Proportional to 32,831.94, 45,309.78 and 20,081.13

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Solution

The fourth proportional to 32,831.94, 45,309.78 and 20,081.13 is: 27,712.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,831.94 : 45,309.78 = 20,081.13 : x
  2. Step 2: Convert to fraction form
    32,831.94/45,309.78 = 20,081.13/x
  3. Step 3: Cross multiply
    32,831.94x = 45,309.78 × 20,081.13
  4. Step 4: Simplify right side
    32,831.94x = 909,871,305.70
  5. Step 5: Solve for x
    x = 909,871,305.70/32,831.94
  6. Step 6: Final answer
    x = 27,712.99

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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.