Home / 19,641.30-27,103.56-11,145.22

Finding the Fourth Proportional to 19,641.30, 27,103.56 and 11,145.22

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Solution

The fourth proportional to 19,641.30, 27,103.56 and 11,145.22 is: 15,379.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.30 : 27,103.56 = 11,145.22 : x
  2. Step 2: Convert to fraction form
    19,641.30/27,103.56 = 11,145.22/x
  3. Step 3: Cross multiply
    19,641.30x = 27,103.56 × 11,145.22
  4. Step 4: Simplify right side
    19,641.30x = 302,075,138.98
  5. Step 5: Solve for x
    x = 302,075,138.98/19,641.30
  6. Step 6: Final answer
    x = 15,379.59

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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.