Home / 28,947.87-43,428.33-12,308.49

Finding the Fourth Proportional to 28,947.87, 43,428.33 and 12,308.49

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Solution

The fourth proportional to 28,947.87, 43,428.33 and 12,308.49 is: 18,465.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,947.87 : 43,428.33 = 12,308.49 : x
  2. Step 2: Convert to fraction form
    28,947.87/43,428.33 = 12,308.49/x
  3. Step 3: Cross multiply
    28,947.87x = 43,428.33 × 12,308.49
  4. Step 4: Simplify right side
    28,947.87x = 534,537,165.52
  5. Step 5: Solve for x
    x = 534,537,165.52/28,947.87
  6. Step 6: Final answer
    x = 18,465.51

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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.