Home / 23,645.21-32,629.55-12,889.86

Finding the Fourth Proportional to 23,645.21, 32,629.55 and 12,889.86

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Solution

The fourth proportional to 23,645.21, 32,629.55 and 12,889.86 is: 17,787.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,645.21 : 32,629.55 = 12,889.86 : x
  2. Step 2: Convert to fraction form
    23,645.21/32,629.55 = 12,889.86/x
  3. Step 3: Cross multiply
    23,645.21x = 32,629.55 × 12,889.86
  4. Step 4: Simplify right side
    23,645.21x = 420,590,363.59
  5. Step 5: Solve for x
    x = 420,590,363.59/23,645.21
  6. Step 6: Final answer
    x = 17,787.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.