Home / 19,877.88-27,431.69-10,803.25

Finding the Fourth Proportional to 19,877.88, 27,431.69 and 10,803.25

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Solution

The fourth proportional to 19,877.88, 27,431.69 and 10,803.25 is: 14,908.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.88 : 27,431.69 = 10,803.25 : x
  2. Step 2: Convert to fraction form
    19,877.88/27,431.69 = 10,803.25/x
  3. Step 3: Cross multiply
    19,877.88x = 27,431.69 × 10,803.25
  4. Step 4: Simplify right side
    19,877.88x = 296,351,305.82
  5. Step 5: Solve for x
    x = 296,351,305.82/19,877.88
  6. Step 6: Final answer
    x = 14,908.59

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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.