Home / 28,831.48-43,264.30-12,190.60

Finding the Fourth Proportional to 28,831.48, 43,264.30 and 12,190.60

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Solution

The fourth proportional to 28,831.48, 43,264.30 and 12,190.60 is: 18,293.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.48 : 43,264.30 = 12,190.60 : x
  2. Step 2: Convert to fraction form
    28,831.48/43,264.30 = 12,190.60/x
  3. Step 3: Cross multiply
    28,831.48x = 43,264.30 × 12,190.60
  4. Step 4: Simplify right side
    28,831.48x = 527,417,775.58
  5. Step 5: Solve for x
    x = 527,417,775.58/28,831.48
  6. Step 6: Final answer
    x = 18,293.12

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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.