Home / 19,825.45-29,680.56-15,429.58

Finding the Fourth Proportional to 19,825.45, 29,680.56 and 15,429.58

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Solution

The fourth proportional to 19,825.45, 29,680.56 and 15,429.58 is: 23,099.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,825.45 : 29,680.56 = 15,429.58 : x
  2. Step 2: Convert to fraction form
    19,825.45/29,680.56 = 15,429.58/x
  3. Step 3: Cross multiply
    19,825.45x = 29,680.56 × 15,429.58
  4. Step 4: Simplify right side
    19,825.45x = 457,958,500.76
  5. Step 5: Solve for x
    x = 457,958,500.76/19,825.45
  6. Step 6: Final answer
    x = 23,099.53

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1.5x scale

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.