Home / 21,079.08-29,095.20-13,914.23

Finding the Fourth Proportional to 21,079.08, 29,095.20 and 13,914.23

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Solution

The fourth proportional to 21,079.08, 29,095.20 and 13,914.23 is: 19,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.08 : 29,095.20 = 13,914.23 : x
  2. Step 2: Convert to fraction form
    21,079.08/29,095.20 = 13,914.23/x
  3. Step 3: Cross multiply
    21,079.08x = 29,095.20 × 13,914.23
  4. Step 4: Simplify right side
    21,079.08x = 404,837,304.70
  5. Step 5: Solve for x
    x = 404,837,304.70/21,079.08
  6. Step 6: Final answer
    x = 19,205.64

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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.