Home / 28,556.29-42,839.03-9,831.73

Finding the Fourth Proportional to 28,556.29, 42,839.03 and 9,831.73

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Solution

The fourth proportional to 28,556.29, 42,839.03 and 9,831.73 is: 14,749.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.29 : 42,839.03 = 9,831.73 : x
  2. Step 2: Convert to fraction form
    28,556.29/42,839.03 = 9,831.73/x
  3. Step 3: Cross multiply
    28,556.29x = 42,839.03 × 9,831.73
  4. Step 4: Simplify right side
    28,556.29x = 421,181,549.94
  5. Step 5: Solve for x
    x = 421,181,549.94/28,556.29
  6. Step 6: Final answer
    x = 14,749.17

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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.