Home / 28,721.45-43,037.17-18,169.19

Finding the Fourth Proportional to 28,721.45, 43,037.17 and 18,169.19

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Solution

The fourth proportional to 28,721.45, 43,037.17 and 18,169.19 is: 27,225.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721.45 : 43,037.17 = 18,169.19 : x
  2. Step 2: Convert to fraction form
    28,721.45/43,037.17 = 18,169.19/x
  3. Step 3: Cross multiply
    28,721.45x = 43,037.17 × 18,169.19
  4. Step 4: Simplify right side
    28,721.45x = 781,950,419.57
  5. Step 5: Solve for x
    x = 781,950,419.57/28,721.45
  6. Step 6: Final answer
    x = 27,225.31

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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.