Home / 19,805.88-29,541.87-18,428.04

Finding the Fourth Proportional to 19,805.88, 29,541.87 and 18,428.04

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Solution

The fourth proportional to 19,805.88, 29,541.87 and 18,428.04 is: 27,486.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.88 : 29,541.87 = 18,428.04 : x
  2. Step 2: Convert to fraction form
    19,805.88/29,541.87 = 18,428.04/x
  3. Step 3: Cross multiply
    19,805.88x = 29,541.87 × 18,428.04
  4. Step 4: Simplify right side
    19,805.88x = 544,398,762.03
  5. Step 5: Solve for x
    x = 544,398,762.03/19,805.88
  6. Step 6: Final answer
    x = 27,486.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.