Home / 19,863.34-29,783.61-15,358.78

Finding the Fourth Proportional to 19,863.34, 29,783.61 and 15,358.78

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Solution

The fourth proportional to 19,863.34, 29,783.61 and 15,358.78 is: 23,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.34 : 29,783.61 = 15,358.78 : x
  2. Step 2: Convert to fraction form
    19,863.34/29,783.61 = 15,358.78/x
  3. Step 3: Cross multiply
    19,863.34x = 29,783.61 × 15,358.78
  4. Step 4: Simplify right side
    19,863.34x = 457,439,913.60
  5. Step 5: Solve for x
    x = 457,439,913.60/19,863.34
  6. Step 6: Final answer
    x = 23,029.36

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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.