Home / 27,015.59-40,490.56-19,120.40

Finding the Fourth Proportional to 27,015.59, 40,490.56 and 19,120.40

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Solution

The fourth proportional to 27,015.59, 40,490.56 and 19,120.40 is: 28,657.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,015.59 : 40,490.56 = 19,120.40 : x
  2. Step 2: Convert to fraction form
    27,015.59/40,490.56 = 19,120.40/x
  3. Step 3: Cross multiply
    27,015.59x = 40,490.56 × 19,120.40
  4. Step 4: Simplify right side
    27,015.59x = 774,195,850.69
  5. Step 5: Solve for x
    x = 774,195,850.69/27,015.59
  6. Step 6: Final answer
    x = 28,657.38

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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.