Home / 28,777.32-43,176.51-12,135.87

Finding the Fourth Proportional to 28,777.32, 43,176.51 and 12,135.87

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Solution

The fourth proportional to 28,777.32, 43,176.51 and 12,135.87 is: 18,208.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.32 : 43,176.51 = 12,135.87 : x
  2. Step 2: Convert to fraction form
    28,777.32/43,176.51 = 12,135.87/x
  3. Step 3: Cross multiply
    28,777.32x = 43,176.51 × 12,135.87
  4. Step 4: Simplify right side
    28,777.32x = 523,984,512.41
  5. Step 5: Solve for x
    x = 523,984,512.41/28,777.32
  6. Step 6: Final answer
    x = 18,208.25

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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.