Home / 21,393.44-29,513.13-13,842.23

Finding the Fourth Proportional to 21,393.44, 29,513.13 and 13,842.23

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Solution

The fourth proportional to 21,393.44, 29,513.13 and 13,842.23 is: 19,095.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,393.44 : 29,513.13 = 13,842.23 : x
  2. Step 2: Convert to fraction form
    21,393.44/29,513.13 = 13,842.23/x
  3. Step 3: Cross multiply
    21,393.44x = 29,513.13 × 13,842.23
  4. Step 4: Simplify right side
    21,393.44x = 408,527,636.65
  5. Step 5: Solve for x
    x = 408,527,636.65/21,393.44
  6. Step 6: Final answer
    x = 19,095.93

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1.5x scale

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.