Home / 19,829.93-27,357.75-12,660.11

Finding the Fourth Proportional to 19,829.93, 27,357.75 and 12,660.11

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Solution

The fourth proportional to 19,829.93, 27,357.75 and 12,660.11 is: 17,466.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,829.93 : 27,357.75 = 12,660.11 : x
  2. Step 2: Convert to fraction form
    19,829.93/27,357.75 = 12,660.11/x
  3. Step 3: Cross multiply
    19,829.93x = 27,357.75 × 12,660.11
  4. Step 4: Simplify right side
    19,829.93x = 346,352,090.16
  5. Step 5: Solve for x
    x = 346,352,090.16/19,829.93
  6. Step 6: Final answer
    x = 17,466.13

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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.