Home / 23,220.57-34,831.32-7,428.61

Finding the Fourth Proportional to 23,220.57, 34,831.32 and 7,428.61

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Solution

The fourth proportional to 23,220.57, 34,831.32 and 7,428.61 is: 11,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,220.57 : 34,831.32 = 7,428.61 : x
  2. Step 2: Convert to fraction form
    23,220.57/34,831.32 = 7,428.61/x
  3. Step 3: Cross multiply
    23,220.57x = 34,831.32 × 7,428.61
  4. Step 4: Simplify right side
    23,220.57x = 258,748,307.75
  5. Step 5: Solve for x
    x = 258,748,307.75/23,220.57
  6. Step 6: Final answer
    x = 11,143.06

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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.