Home / 19,950.30-27,531.60-10,998.12

Finding the Fourth Proportional to 19,950.30, 27,531.60 and 10,998.12

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Solution

The fourth proportional to 19,950.30, 27,531.60 and 10,998.12 is: 15,177.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950.30 : 27,531.60 = 10,998.12 : x
  2. Step 2: Convert to fraction form
    19,950.30/27,531.60 = 10,998.12/x
  3. Step 3: Cross multiply
    19,950.30x = 27,531.60 × 10,998.12
  4. Step 4: Simplify right side
    19,950.30x = 302,795,840.59
  5. Step 5: Solve for x
    x = 302,795,840.59/19,950.30
  6. Step 6: Final answer
    x = 15,177.51

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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.