Home / 18,983.43-28,436.87-15,894.29

Finding the Fourth Proportional to 18,983.43, 28,436.87 and 15,894.29

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Solution

The fourth proportional to 18,983.43, 28,436.87 and 15,894.29 is: 23,809.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,983.43 : 28,436.87 = 15,894.29 : x
  2. Step 2: Convert to fraction form
    18,983.43/28,436.87 = 15,894.29/x
  3. Step 3: Cross multiply
    18,983.43x = 28,436.87 × 15,894.29
  4. Step 4: Simplify right side
    18,983.43x = 451,983,636.82
  5. Step 5: Solve for x
    x = 451,983,636.82/18,983.43
  6. Step 6: Final answer
    x = 23,809.38

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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.