Home / 28,705.65-43,039.77-9,984.25

Finding the Fourth Proportional to 28,705.65, 43,039.77 and 9,984.25

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Solution

The fourth proportional to 28,705.65, 43,039.77 and 9,984.25 is: 14,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.65 : 43,039.77 = 9,984.25 : x
  2. Step 2: Convert to fraction form
    28,705.65/43,039.77 = 9,984.25/x
  3. Step 3: Cross multiply
    28,705.65x = 43,039.77 × 9,984.25
  4. Step 4: Simplify right side
    28,705.65x = 429,719,823.62
  5. Step 5: Solve for x
    x = 429,719,823.62/28,705.65
  6. Step 6: Final answer
    x = 14,969.87

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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.