Home / 19,861.84-29,781.36-15,357.28

Finding the Fourth Proportional to 19,861.84, 29,781.36 and 15,357.28

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Solution

The fourth proportional to 19,861.84, 29,781.36 and 15,357.28 is: 23,027.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.84 : 29,781.36 = 15,357.28 : x
  2. Step 2: Convert to fraction form
    19,861.84/29,781.36 = 15,357.28/x
  3. Step 3: Cross multiply
    19,861.84x = 29,781.36 × 15,357.28
  4. Step 4: Simplify right side
    19,861.84x = 457,360,684.30
  5. Step 5: Solve for x
    x = 457,360,684.30/19,861.84
  6. Step 6: Final answer
    x = 23,027.11

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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.