Home / 20,085.63-27,718.38-11,133.27

Finding the Fourth Proportional to 20,085.63, 27,718.38 and 11,133.27

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Solution

The fourth proportional to 20,085.63, 27,718.38 and 11,133.27 is: 15,364.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.63 : 27,718.38 = 11,133.27 : x
  2. Step 2: Convert to fraction form
    20,085.63/27,718.38 = 11,133.27/x
  3. Step 3: Cross multiply
    20,085.63x = 27,718.38 × 11,133.27
  4. Step 4: Simplify right side
    20,085.63x = 308,596,208.50
  5. Step 5: Solve for x
    x = 308,596,208.50/20,085.63
  6. Step 6: Final answer
    x = 15,364.03

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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.