Home / 19,977.72-27,571.02-11,027.16

Finding the Fourth Proportional to 19,977.72, 27,571.02 and 11,027.16

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Solution

The fourth proportional to 19,977.72, 27,571.02 and 11,027.16 is: 15,218.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,977.72 : 27,571.02 = 11,027.16 : x
  2. Step 2: Convert to fraction form
    19,977.72/27,571.02 = 11,027.16/x
  3. Step 3: Cross multiply
    19,977.72x = 27,571.02 × 11,027.16
  4. Step 4: Simplify right side
    19,977.72x = 304,030,048.90
  5. Step 5: Solve for x
    x = 304,030,048.90/19,977.72
  6. Step 6: Final answer
    x = 15,218.46

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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.