Home / 21,743.40-30,013.02-19,840.44

Finding the Fourth Proportional to 21,743.40, 30,013.02 and 19,840.44

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Solution

The fourth proportional to 21,743.40, 30,013.02 and 19,840.44 is: 27,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,743.40 : 30,013.02 = 19,840.44 : x
  2. Step 2: Convert to fraction form
    21,743.40/30,013.02 = 19,840.44/x
  3. Step 3: Cross multiply
    21,743.40x = 30,013.02 × 19,840.44
  4. Step 4: Simplify right side
    21,743.40x = 595,471,522.53
  5. Step 5: Solve for x
    x = 595,471,522.53/21,743.40
  6. Step 6: Final answer
    x = 27,386.31

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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.