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Finding the Fourth Proportional to 19,998.42, 27,597.28 and 11,045.28

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Solution

The fourth proportional to 19,998.42, 27,597.28 and 11,045.28 is: 15,242.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,998.42 : 27,597.28 = 11,045.28 : x
  2. Step 2: Convert to fraction form
    19,998.42/27,597.28 = 11,045.28/x
  3. Step 3: Cross multiply
    19,998.42x = 27,597.28 × 11,045.28
  4. Step 4: Simplify right side
    19,998.42x = 304,819,684.84
  5. Step 5: Solve for x
    x = 304,819,684.84/19,998.42
  6. Step 6: Final answer
    x = 15,242.19

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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.