Home / 19,855.21-29,725.26-15,459.34

Finding the Fourth Proportional to 19,855.21, 29,725.26 and 15,459.34

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Solution

The fourth proportional to 19,855.21, 29,725.26 and 15,459.34 is: 23,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,855.21 : 29,725.26 = 15,459.34 : x
  2. Step 2: Convert to fraction form
    19,855.21/29,725.26 = 15,459.34/x
  3. Step 3: Cross multiply
    19,855.21x = 29,725.26 × 15,459.34
  4. Step 4: Simplify right side
    19,855.21x = 459,532,900.93
  5. Step 5: Solve for x
    x = 459,532,900.93/19,855.21
  6. Step 6: Final answer
    x = 23,144.20

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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.