Home / 28,785.64-43,192.06-12,149.48

Finding the Fourth Proportional to 28,785.64, 43,192.06 and 12,149.48

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Solution

The fourth proportional to 28,785.64, 43,192.06 and 12,149.48 is: 18,229.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.64 : 43,192.06 = 12,149.48 : x
  2. Step 2: Convert to fraction form
    28,785.64/43,192.06 = 12,149.48/x
  3. Step 3: Cross multiply
    28,785.64x = 43,192.06 × 12,149.48
  4. Step 4: Simplify right side
    28,785.64x = 524,761,069.13
  5. Step 5: Solve for x
    x = 524,761,069.13/28,785.64
  6. Step 6: Final answer
    x = 18,229.96

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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.