Home / 20,017.13-27,623.63-11,185.13

Finding the Fourth Proportional to 20,017.13, 27,623.63 and 11,185.13

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Solution

The fourth proportional to 20,017.13, 27,623.63 and 11,185.13 is: 15,435.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.13 : 27,623.63 = 11,185.13 : x
  2. Step 2: Convert to fraction form
    20,017.13/27,623.63 = 11,185.13/x
  3. Step 3: Cross multiply
    20,017.13x = 27,623.63 × 11,185.13
  4. Step 4: Simplify right side
    20,017.13x = 308,973,782.47
  5. Step 5: Solve for x
    x = 308,973,782.47/20,017.13
  6. Step 6: Final answer
    x = 15,435.47

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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.