Home / 28,756.76-43,167.96-19,276.14

Finding the Fourth Proportional to 28,756.76, 43,167.96 and 19,276.14

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Solution

The fourth proportional to 28,756.76, 43,167.96 and 19,276.14 is: 28,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.76 : 43,167.96 = 19,276.14 : x
  2. Step 2: Convert to fraction form
    28,756.76/43,167.96 = 19,276.14/x
  3. Step 3: Cross multiply
    28,756.76x = 43,167.96 × 19,276.14
  4. Step 4: Simplify right side
    28,756.76x = 832,111,640.47
  5. Step 5: Solve for x
    x = 832,111,640.47/28,756.76
  6. Step 6: Final answer
    x = 28,936.21

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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.