Home / 19,788.48-29,681.94-4,997.22

Finding the Fourth Proportional to 19,788.48, 29,681.94 and 4,997.22

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Solution

The fourth proportional to 19,788.48, 29,681.94 and 4,997.22 is: 7,495.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,788.48 : 29,681.94 = 4,997.22 : x
  2. Step 2: Convert to fraction form
    19,788.48/29,681.94 = 4,997.22/x
  3. Step 3: Cross multiply
    19,788.48x = 29,681.94 × 4,997.22
  4. Step 4: Simplify right side
    19,788.48x = 148,327,184.21
  5. Step 5: Solve for x
    x = 148,327,184.21/19,788.48
  6. Step 6: Final answer
    x = 7,495.63

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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.