Home / 20,831.72-31,252.27-6,601.06

Finding the Fourth Proportional to 20,831.72, 31,252.27 and 6,601.06

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Solution

The fourth proportional to 20,831.72, 31,252.27 and 6,601.06 is: 9,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,831.72 : 31,252.27 = 6,601.06 : x
  2. Step 2: Convert to fraction form
    20,831.72/31,252.27 = 6,601.06/x
  3. Step 3: Cross multiply
    20,831.72x = 31,252.27 × 6,601.06
  4. Step 4: Simplify right side
    20,831.72x = 206,298,109.41
  5. Step 5: Solve for x
    x = 206,298,109.41/20,831.72
  6. Step 6: Final answer
    x = 9,903.08

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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.