Home / 20,831.36-31,265.52-9,744.08

Finding the Fourth Proportional to 20,831.36, 31,265.52 and 9,744.08

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Solution

The fourth proportional to 20,831.36, 31,265.52 and 9,744.08 is: 14,624.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,831.36 : 31,265.52 = 9,744.08 : x
  2. Step 2: Convert to fraction form
    20,831.36/31,265.52 = 9,744.08/x
  3. Step 3: Cross multiply
    20,831.36x = 31,265.52 × 9,744.08
  4. Step 4: Simplify right side
    20,831.36x = 304,653,728.12
  5. Step 5: Solve for x
    x = 304,653,728.12/20,831.36
  6. Step 6: Final answer
    x = 14,624.76

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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.