Home / 19,971.21-27,560.36-11,018.98

Finding the Fourth Proportional to 19,971.21, 27,560.36 and 11,018.98

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Solution

The fourth proportional to 19,971.21, 27,560.36 and 11,018.98 is: 15,206.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.21 : 27,560.36 = 11,018.98 : x
  2. Step 2: Convert to fraction form
    19,971.21/27,560.36 = 11,018.98/x
  3. Step 3: Cross multiply
    19,971.21x = 27,560.36 × 11,018.98
  4. Step 4: Simplify right side
    19,971.21x = 303,687,055.63
  5. Step 5: Solve for x
    x = 303,687,055.63/19,971.21
  6. Step 6: Final answer
    x = 15,206.24

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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.