Home / 20,881.84-31,327.37-6,091.92

Finding the Fourth Proportional to 20,881.84, 31,327.37 and 6,091.92

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Solution

The fourth proportional to 20,881.84, 31,327.37 and 6,091.92 is: 9,139.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881.84 : 31,327.37 = 6,091.92 : x
  2. Step 2: Convert to fraction form
    20,881.84/31,327.37 = 6,091.92/x
  3. Step 3: Cross multiply
    20,881.84x = 31,327.37 × 6,091.92
  4. Step 4: Simplify right side
    20,881.84x = 190,843,831.85
  5. Step 5: Solve for x
    x = 190,843,831.85/20,881.84
  6. Step 6: Final answer
    x = 9,139.22

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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.