Home / 28,687.30-43,009.35-12,033.70

Finding the Fourth Proportional to 28,687.30, 43,009.35 and 12,033.70

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Solution

The fourth proportional to 28,687.30, 43,009.35 and 12,033.70 is: 18,041.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.30 : 43,009.35 = 12,033.70 : x
  2. Step 2: Convert to fraction form
    28,687.30/43,009.35 = 12,033.70/x
  3. Step 3: Cross multiply
    28,687.30x = 43,009.35 × 12,033.70
  4. Step 4: Simplify right side
    28,687.30x = 517,561,615.10
  5. Step 5: Solve for x
    x = 517,561,615.10/28,687.30
  6. Step 6: Final answer
    x = 18,041.49

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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.