Home / 19,326.90-28,946.34-11,519.58

Finding the Fourth Proportional to 19,326.90, 28,946.34 and 11,519.58

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Solution

The fourth proportional to 19,326.90, 28,946.34 and 11,519.58 is: 17,253.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,326.90 : 28,946.34 = 11,519.58 : x
  2. Step 2: Convert to fraction form
    19,326.90/28,946.34 = 11,519.58/x
  3. Step 3: Cross multiply
    19,326.90x = 28,946.34 × 11,519.58
  4. Step 4: Simplify right side
    19,326.90x = 333,449,679.34
  5. Step 5: Solve for x
    x = 333,449,679.34/19,326.90
  6. Step 6: Final answer
    x = 17,253.14

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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.