Home / 19,965.79-29,924.76-8,859.96

Finding the Fourth Proportional to 19,965.79, 29,924.76 and 8,859.96

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Solution

The fourth proportional to 19,965.79, 29,924.76 and 8,859.96 is: 13,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.79 : 29,924.76 = 8,859.96 : x
  2. Step 2: Convert to fraction form
    19,965.79/29,924.76 = 8,859.96/x
  3. Step 3: Cross multiply
    19,965.79x = 29,924.76 × 8,859.96
  4. Step 4: Simplify right side
    19,965.79x = 265,132,176.61
  5. Step 5: Solve for x
    x = 265,132,176.61/19,965.79
  6. Step 6: Final answer
    x = 13,279.32

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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.