Home / 19,756.87-27,274.40-15,270.48

Finding the Fourth Proportional to 19,756.87, 27,274.40 and 15,270.48

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Solution

The fourth proportional to 19,756.87, 27,274.40 and 15,270.48 is: 21,080.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,756.87 : 27,274.40 = 15,270.48 : x
  2. Step 2: Convert to fraction form
    19,756.87/27,274.40 = 15,270.48/x
  3. Step 3: Cross multiply
    19,756.87x = 27,274.40 × 15,270.48
  4. Step 4: Simplify right side
    19,756.87x = 416,493,179.71
  5. Step 5: Solve for x
    x = 416,493,179.71/19,756.87
  6. Step 6: Final answer
    x = 21,080.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.