Home / 40,857.24-61,199.70-18,689.28

Finding the Fourth Proportional to 40,857.24, 61,199.70 and 18,689.28

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Solution

The fourth proportional to 40,857.24, 61,199.70 and 18,689.28 is: 27,994.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,857.24 : 61,199.70 = 18,689.28 : x
  2. Step 2: Convert to fraction form
    40,857.24/61,199.70 = 18,689.28/x
  3. Step 3: Cross multiply
    40,857.24x = 61,199.70 × 18,689.28
  4. Step 4: Simplify right side
    40,857.24x = 1,143,778,329.22
  5. Step 5: Solve for x
    x = 1,143,778,329.22/40,857.24
  6. Step 6: Final answer
    x = 27,994.51

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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.