Home / 19,790.10-29,620.35-15,383.70

Finding the Fourth Proportional to 19,790.10, 29,620.35 and 15,383.70

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Solution

The fourth proportional to 19,790.10, 29,620.35 and 15,383.70 is: 23,025.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,790.10 : 29,620.35 = 15,383.70 : x
  2. Step 2: Convert to fraction form
    19,790.10/29,620.35 = 15,383.70/x
  3. Step 3: Cross multiply
    19,790.10x = 29,620.35 × 15,383.70
  4. Step 4: Simplify right side
    19,790.10x = 455,670,578.30
  5. Step 5: Solve for x
    x = 455,670,578.30/19,790.10
  6. Step 6: Final answer
    x = 23,025.18

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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.