Home / 20,085.94-27,718.80-11,133.59

Finding the Fourth Proportional to 20,085.94, 27,718.80 and 11,133.59

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Solution

The fourth proportional to 20,085.94, 27,718.80 and 11,133.59 is: 15,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.94 : 27,718.80 = 11,133.59 : x
  2. Step 2: Convert to fraction form
    20,085.94/27,718.80 = 11,133.59/x
  3. Step 3: Cross multiply
    20,085.94x = 27,718.80 × 11,133.59
  4. Step 4: Simplify right side
    20,085.94x = 308,609,698.82
  5. Step 5: Solve for x
    x = 308,609,698.82/20,085.94
  6. Step 6: Final answer
    x = 15,364.47

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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.