Home / 28,709.39-43,057.02-9,986.69

Finding the Fourth Proportional to 28,709.39, 43,057.02 and 9,986.69

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Solution

The fourth proportional to 28,709.39, 43,057.02 and 9,986.69 is: 14,977.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.39 : 43,057.02 = 9,986.69 : x
  2. Step 2: Convert to fraction form
    28,709.39/43,057.02 = 9,986.69/x
  3. Step 3: Cross multiply
    28,709.39x = 43,057.02 × 9,986.69
  4. Step 4: Simplify right side
    28,709.39x = 429,997,199.98
  5. Step 5: Solve for x
    x = 429,997,199.98/28,709.39
  6. Step 6: Final answer
    x = 14,977.58

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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.