Home / 28,818.69-43,232.64-12,178.86

Finding the Fourth Proportional to 28,818.69, 43,232.64 and 12,178.86

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Solution

The fourth proportional to 28,818.69, 43,232.64 and 12,178.86 is: 18,270.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.69 : 43,232.64 = 12,178.86 : x
  2. Step 2: Convert to fraction form
    28,818.69/43,232.64 = 12,178.86/x
  3. Step 3: Cross multiply
    28,818.69x = 43,232.64 × 12,178.86
  4. Step 4: Simplify right side
    28,818.69x = 526,524,062.20
  5. Step 5: Solve for x
    x = 526,524,062.20/28,818.69
  6. Step 6: Final answer
    x = 18,270.23

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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.