Home / 19,623.06-29,447.55-11,719.76

Finding the Fourth Proportional to 19,623.06, 29,447.55 and 11,719.76

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Solution

The fourth proportional to 19,623.06, 29,447.55 and 11,719.76 is: 17,587.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,623.06 : 29,447.55 = 11,719.76 : x
  2. Step 2: Convert to fraction form
    19,623.06/29,447.55 = 11,719.76/x
  3. Step 3: Cross multiply
    19,623.06x = 29,447.55 × 11,719.76
  4. Step 4: Simplify right side
    19,623.06x = 345,118,071.35
  5. Step 5: Solve for x
    x = 345,118,071.35/19,623.06
  6. Step 6: Final answer
    x = 17,587.37

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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.