Home / 28,669.68-43,008.78-8,949.78

Finding the Fourth Proportional to 28,669.68, 43,008.78 and 8,949.78

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Solution

The fourth proportional to 28,669.68, 43,008.78 and 8,949.78 is: 13,426.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,669.68 : 43,008.78 = 8,949.78 : x
  2. Step 2: Convert to fraction form
    28,669.68/43,008.78 = 8,949.78/x
  3. Step 3: Cross multiply
    28,669.68x = 43,008.78 × 8,949.78
  4. Step 4: Simplify right side
    28,669.68x = 384,919,119.07
  5. Step 5: Solve for x
    x = 384,919,119.07/28,669.68
  6. Step 6: Final answer
    x = 13,426.00

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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.