Home / 19,421.10-26,791.95-11,458.02

Finding the Fourth Proportional to 19,421.10, 26,791.95 and 11,458.02

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Solution

The fourth proportional to 19,421.10, 26,791.95 and 11,458.02 is: 15,806.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,421.10 : 26,791.95 = 11,458.02 : x
  2. Step 2: Convert to fraction form
    19,421.10/26,791.95 = 11,458.02/x
  3. Step 3: Cross multiply
    19,421.10x = 26,791.95 × 11,458.02
  4. Step 4: Simplify right side
    19,421.10x = 306,982,698.94
  5. Step 5: Solve for x
    x = 306,982,698.94/19,421.10
  6. Step 6: Final answer
    x = 15,806.66

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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.