Home / 20,185.93-27,854.26-11,688.22

Finding the Fourth Proportional to 20,185.93, 27,854.26 and 11,688.22

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Solution

The fourth proportional to 20,185.93, 27,854.26 and 11,688.22 is: 16,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.93 : 27,854.26 = 11,688.22 : x
  2. Step 2: Convert to fraction form
    20,185.93/27,854.26 = 11,688.22/x
  3. Step 3: Cross multiply
    20,185.93x = 27,854.26 × 11,688.22
  4. Step 4: Simplify right side
    20,185.93x = 325,566,718.82
  5. Step 5: Solve for x
    x = 325,566,718.82/20,185.93
  6. Step 6: Final answer
    x = 16,128.40

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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.