Home / 19,268.76-28,908.96-13,657.28

Finding the Fourth Proportional to 19,268.76, 28,908.96 and 13,657.28

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Solution

The fourth proportional to 19,268.76, 28,908.96 and 13,657.28 is: 20,490.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,268.76 : 28,908.96 = 13,657.28 : x
  2. Step 2: Convert to fraction form
    19,268.76/28,908.96 = 13,657.28/x
  3. Step 3: Cross multiply
    19,268.76x = 28,908.96 × 13,657.28
  4. Step 4: Simplify right side
    19,268.76x = 394,817,761.23
  5. Step 5: Solve for x
    x = 394,817,761.23/19,268.76
  6. Step 6: Final answer
    x = 20,490.05

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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.