Home / 28,686.14-43,029.24-8,964.80

Finding the Fourth Proportional to 28,686.14, 43,029.24 and 8,964.80

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Solution

The fourth proportional to 28,686.14, 43,029.24 and 8,964.80 is: 13,447.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.14 : 43,029.24 = 8,964.80 : x
  2. Step 2: Convert to fraction form
    28,686.14/43,029.24 = 8,964.80/x
  3. Step 3: Cross multiply
    28,686.14x = 43,029.24 × 8,964.80
  4. Step 4: Simplify right side
    28,686.14x = 385,748,530.75
  5. Step 5: Solve for x
    x = 385,748,530.75/28,686.14
  6. Step 6: Final answer
    x = 13,447.21

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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.