Home / 20,554.52-30,831.66-4,972.14

Finding the Fourth Proportional to 20,554.52, 30,831.66 and 4,972.14

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Solution

The fourth proportional to 20,554.52, 30,831.66 and 4,972.14 is: 7,458.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.52 : 30,831.66 = 4,972.14 : x
  2. Step 2: Convert to fraction form
    20,554.52/30,831.66 = 4,972.14/x
  3. Step 3: Cross multiply
    20,554.52x = 30,831.66 × 4,972.14
  4. Step 4: Simplify right side
    20,554.52x = 153,299,329.95
  5. Step 5: Solve for x
    x = 153,299,329.95/20,554.52
  6. Step 6: Final answer
    x = 7,458.18

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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.