Home / 19,907.90-29,880.31-10,054.11

Finding the Fourth Proportional to 19,907.90, 29,880.31 and 10,054.11

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Solution

The fourth proportional to 19,907.90, 29,880.31 and 10,054.11 is: 15,090.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,907.90 : 29,880.31 = 10,054.11 : x
  2. Step 2: Convert to fraction form
    19,907.90/29,880.31 = 10,054.11/x
  3. Step 3: Cross multiply
    19,907.90x = 29,880.31 × 10,054.11
  4. Step 4: Simplify right side
    19,907.90x = 300,419,923.57
  5. Step 5: Solve for x
    x = 300,419,923.57/19,907.90
  6. Step 6: Final answer
    x = 15,090.49

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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.