Home / 19,964.93-29,947.39-9,431.48

Finding the Fourth Proportional to 19,964.93, 29,947.39 and 9,431.48

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Solution

The fourth proportional to 19,964.93, 29,947.39 and 9,431.48 is: 14,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.93 : 29,947.39 = 9,431.48 : x
  2. Step 2: Convert to fraction form
    19,964.93/29,947.39 = 9,431.48/x
  3. Step 3: Cross multiply
    19,964.93x = 29,947.39 × 9,431.48
  4. Step 4: Simplify right side
    19,964.93x = 282,448,261.13
  5. Step 5: Solve for x
    x = 282,448,261.13/19,964.93
  6. Step 6: Final answer
    x = 14,147.22

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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.