Home / 28,831.96-43,249.76-12,188.89

Finding the Fourth Proportional to 28,831.96, 43,249.76 and 12,188.89

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Solution

The fourth proportional to 28,831.96, 43,249.76 and 12,188.89 is: 18,284.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.96 : 43,249.76 = 12,188.89 : x
  2. Step 2: Convert to fraction form
    28,831.96/43,249.76 = 12,188.89/x
  3. Step 3: Cross multiply
    28,831.96x = 43,249.76 × 12,188.89
  4. Step 4: Simplify right side
    28,831.96x = 527,166,459.04
  5. Step 5: Solve for x
    x = 527,166,459.04/28,831.96
  6. Step 6: Final answer
    x = 18,284.10

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1.5x scale

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.