Home / 15,221.28-22,831.92-4,127.98

Finding the Fourth Proportional to 15,221.28, 22,831.92 and 4,127.98

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Solution

The fourth proportional to 15,221.28, 22,831.92 and 4,127.98 is: 6,191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,221.28 : 22,831.92 = 4,127.98 : x
  2. Step 2: Convert to fraction form
    15,221.28/22,831.92 = 4,127.98/x
  3. Step 3: Cross multiply
    15,221.28x = 22,831.92 × 4,127.98
  4. Step 4: Simplify right side
    15,221.28x = 94,249,709.12
  5. Step 5: Solve for x
    x = 94,249,709.12/15,221.28
  6. Step 6: Final answer
    x = 6,191.97

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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.