Home / 19,738.88-27,239.65-11,355.38

Finding the Fourth Proportional to 19,738.88, 27,239.65 and 11,355.38

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Solution

The fourth proportional to 19,738.88, 27,239.65 and 11,355.38 is: 15,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.88 : 27,239.65 = 11,355.38 : x
  2. Step 2: Convert to fraction form
    19,738.88/27,239.65 = 11,355.38/x
  3. Step 3: Cross multiply
    19,738.88x = 27,239.65 × 11,355.38
  4. Step 4: Simplify right side
    19,738.88x = 309,316,412.23
  5. Step 5: Solve for x
    x = 309,316,412.23/19,738.88
  6. Step 6: Final answer
    x = 15,670.42

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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.