Home / 20,085.93-27,721.85-19,200.06

Finding the Fourth Proportional to 20,085.93, 27,721.85 and 19,200.06

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Solution

The fourth proportional to 20,085.93, 27,721.85 and 19,200.06 is: 26,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.93 : 27,721.85 = 19,200.06 : x
  2. Step 2: Convert to fraction form
    20,085.93/27,721.85 = 19,200.06/x
  3. Step 3: Cross multiply
    20,085.93x = 27,721.85 × 19,200.06
  4. Step 4: Simplify right side
    20,085.93x = 532,261,087.31
  5. Step 5: Solve for x
    x = 532,261,087.31/20,085.93
  6. Step 6: Final answer
    x = 26,499.20

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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.