Home / 20,266.26-27,904.77-15,490.26

Finding the Fourth Proportional to 20,266.26, 27,904.77 and 15,490.26

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Solution

The fourth proportional to 20,266.26, 27,904.77 and 15,490.26 is: 21,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.26 : 27,904.77 = 15,490.26 : x
  2. Step 2: Convert to fraction form
    20,266.26/27,904.77 = 15,490.26/x
  3. Step 3: Cross multiply
    20,266.26x = 27,904.77 × 15,490.26
  4. Step 4: Simplify right side
    20,266.26x = 432,252,142.54
  5. Step 5: Solve for x
    x = 432,252,142.54/20,266.26
  6. Step 6: Final answer
    x = 21,328.66

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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.