Home / 20,328.23-28,050.98-11,831.48

Finding the Fourth Proportional to 20,328.23, 28,050.98 and 11,831.48

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Solution

The fourth proportional to 20,328.23, 28,050.98 and 11,831.48 is: 16,326.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,328.23 : 28,050.98 = 11,831.48 : x
  2. Step 2: Convert to fraction form
    20,328.23/28,050.98 = 11,831.48/x
  3. Step 3: Cross multiply
    20,328.23x = 28,050.98 × 11,831.48
  4. Step 4: Simplify right side
    20,328.23x = 331,884,608.85
  5. Step 5: Solve for x
    x = 331,884,608.85/20,328.23
  6. Step 6: Final answer
    x = 16,326.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.