Home / 19,579.51-29,369.01-4,788.55

Finding the Fourth Proportional to 19,579.51, 29,369.01 and 4,788.55

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Solution

The fourth proportional to 19,579.51, 29,369.01 and 4,788.55 is: 7,182.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,579.51 : 29,369.01 = 4,788.55 : x
  2. Step 2: Convert to fraction form
    19,579.51/29,369.01 = 4,788.55/x
  3. Step 3: Cross multiply
    19,579.51x = 29,369.01 × 4,788.55
  4. Step 4: Simplify right side
    19,579.51x = 140,635,083.17
  5. Step 5: Solve for x
    x = 140,635,083.17/19,579.51
  6. Step 6: Final answer
    x = 7,182.77

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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.