Home / 19,008.42-28,442-11,955.49

Finding the Fourth Proportional to 19,008.42, 28,442 and 11,955.49

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Solution

The fourth proportional to 19,008.42, 28,442 and 11,955.49 is: 17,888.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008.42 : 28,442 = 11,955.49 : x
  2. Step 2: Convert to fraction form
    19,008.42/28,442 = 11,955.49/x
  3. Step 3: Cross multiply
    19,008.42x = 28,442 × 11,955.49
  4. Step 4: Simplify right side
    19,008.42x = 340,038,046.58
  5. Step 5: Solve for x
    x = 340,038,046.58/19,008.42
  6. Step 6: Final answer
    x = 17,888.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.