Home / 21,903.39-30,226.65-11,831.83

Finding the Fourth Proportional to 21,903.39, 30,226.65 and 11,831.83

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Solution

The fourth proportional to 21,903.39, 30,226.65 and 11,831.83 is: 16,327.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903.39 : 30,226.65 = 11,831.83 : x
  2. Step 2: Convert to fraction form
    21,903.39/30,226.65 = 11,831.83/x
  3. Step 3: Cross multiply
    21,903.39x = 30,226.65 × 11,831.83
  4. Step 4: Simplify right side
    21,903.39x = 357,636,553.07
  5. Step 5: Solve for x
    x = 357,636,553.07/21,903.39
  6. Step 6: Final answer
    x = 16,327.91

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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.