Home / 20,075.17-27,703.96-11,122.82

Finding the Fourth Proportional to 20,075.17, 27,703.96 and 11,122.82

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Solution

The fourth proportional to 20,075.17, 27,703.96 and 11,122.82 is: 15,349.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,075.17 : 27,703.96 = 11,122.82 : x
  2. Step 2: Convert to fraction form
    20,075.17/27,703.96 = 11,122.82/x
  3. Step 3: Cross multiply
    20,075.17x = 27,703.96 × 11,122.82
  4. Step 4: Simplify right side
    20,075.17x = 308,145,966.23
  5. Step 5: Solve for x
    x = 308,145,966.23/20,075.17
  6. Step 6: Final answer
    x = 15,349.61

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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.