Home / 21,397.94-29,537.28-19,155.66

Finding the Fourth Proportional to 21,397.94, 29,537.28 and 19,155.66

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Solution

The fourth proportional to 21,397.94, 29,537.28 and 19,155.66 is: 26,442.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,397.94 : 29,537.28 = 19,155.66 : x
  2. Step 2: Convert to fraction form
    21,397.94/29,537.28 = 19,155.66/x
  3. Step 3: Cross multiply
    21,397.94x = 29,537.28 × 19,155.66
  4. Step 4: Simplify right side
    21,397.94x = 565,806,093.00
  5. Step 5: Solve for x
    x = 565,806,093.00/21,397.94
  6. Step 6: Final answer
    x = 26,442.08

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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.