Home / 15,222.10-22,831.32-4,128.10

Finding the Fourth Proportional to 15,222.10, 22,831.32 and 4,128.10

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Solution

The fourth proportional to 15,222.10, 22,831.32 and 4,128.10 is: 6,191.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,222.10 : 22,831.32 = 4,128.10 : x
  2. Step 2: Convert to fraction form
    15,222.10/22,831.32 = 4,128.10/x
  3. Step 3: Cross multiply
    15,222.10x = 22,831.32 × 4,128.10
  4. Step 4: Simplify right side
    15,222.10x = 94,249,972.09
  5. Step 5: Solve for x
    x = 94,249,972.09/15,222.10
  6. Step 6: Final answer
    x = 6,191.65

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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.