Home / 40,983.47-61,477.25-18,786.79

Finding the Fourth Proportional to 40,983.47, 61,477.25 and 18,786.79

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Solution

The fourth proportional to 40,983.47, 61,477.25 and 18,786.79 is: 28,181.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,983.47 : 61,477.25 = 18,786.79 : x
  2. Step 2: Convert to fraction form
    40,983.47/61,477.25 = 18,786.79/x
  3. Step 3: Cross multiply
    40,983.47x = 61,477.25 × 18,786.79
  4. Step 4: Simplify right side
    40,983.47x = 1,154,959,981.14
  5. Step 5: Solve for x
    x = 1,154,959,981.14/40,983.47
  6. Step 6: Final answer
    x = 28,181.12

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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.