Home / 19,944.45-27,522.10-10,991.45

Finding the Fourth Proportional to 19,944.45, 27,522.10 and 10,991.45

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Solution

The fourth proportional to 19,944.45, 27,522.10 and 10,991.45 is: 15,167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,944.45 : 27,522.10 = 10,991.45 : x
  2. Step 2: Convert to fraction form
    19,944.45/27,522.10 = 10,991.45/x
  3. Step 3: Cross multiply
    19,944.45x = 27,522.10 × 10,991.45
  4. Step 4: Simplify right side
    19,944.45x = 302,507,731.09
  5. Step 5: Solve for x
    x = 302,507,731.09/19,944.45
  6. Step 6: Final answer
    x = 15,167.52

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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.