Home / 20,125.29-27,771.66-11,172.26

Finding the Fourth Proportional to 20,125.29, 27,771.66 and 11,172.26

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Solution

The fourth proportional to 20,125.29, 27,771.66 and 11,172.26 is: 15,417.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.29 : 27,771.66 = 11,172.26 : x
  2. Step 2: Convert to fraction form
    20,125.29/27,771.66 = 11,172.26/x
  3. Step 3: Cross multiply
    20,125.29x = 27,771.66 × 11,172.26
  4. Step 4: Simplify right side
    20,125.29x = 310,272,275.58
  5. Step 5: Solve for x
    x = 310,272,275.58/20,125.29
  6. Step 6: Final answer
    x = 15,417.03

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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.