Home / 23,115.40-34,673.10-13,784.20

Finding the Fourth Proportional to 23,115.40, 34,673.10 and 13,784.20

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Solution

The fourth proportional to 23,115.40, 34,673.10 and 13,784.20 is: 20,676.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,115.40 : 34,673.10 = 13,784.20 : x
  2. Step 2: Convert to fraction form
    23,115.40/34,673.10 = 13,784.20/x
  3. Step 3: Cross multiply
    23,115.40x = 34,673.10 × 13,784.20
  4. Step 4: Simplify right side
    23,115.40x = 477,940,945.02
  5. Step 5: Solve for x
    x = 477,940,945.02/23,115.40
  6. Step 6: Final answer
    x = 20,676.30

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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.