Home / 28,556.23-42,838.94-9,831.66

Finding the Fourth Proportional to 28,556.23, 42,838.94 and 9,831.66

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Solution

The fourth proportional to 28,556.23, 42,838.94 and 9,831.66 is: 14,749.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.23 : 42,838.94 = 9,831.66 : x
  2. Step 2: Convert to fraction form
    28,556.23/42,838.94 = 9,831.66/x
  3. Step 3: Cross multiply
    28,556.23x = 42,838.94 × 9,831.66
  4. Step 4: Simplify right side
    28,556.23x = 421,177,950.78
  5. Step 5: Solve for x
    x = 421,177,950.78/28,556.23
  6. Step 6: Final answer
    x = 14,749.07

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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.