Home / 21,903.06-30,226.22-11,831.50

Finding the Fourth Proportional to 21,903.06, 30,226.22 and 11,831.50

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Solution

The fourth proportional to 21,903.06, 30,226.22 and 11,831.50 is: 16,327.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,903.06 : 30,226.22 = 11,831.50 : x
  2. Step 2: Convert to fraction form
    21,903.06/30,226.22 = 11,831.50/x
  3. Step 3: Cross multiply
    21,903.06x = 30,226.22 × 11,831.50
  4. Step 4: Simplify right side
    21,903.06x = 357,621,521.93
  5. Step 5: Solve for x
    x = 357,621,521.93/21,903.06
  6. Step 6: Final answer
    x = 16,327.47

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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.