Home / 23,431.90-32,335.58-12,821.30

Finding the Fourth Proportional to 23,431.90, 32,335.58 and 12,821.30

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Solution

The fourth proportional to 23,431.90, 32,335.58 and 12,821.30 is: 17,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,431.90 : 32,335.58 = 12,821.30 : x
  2. Step 2: Convert to fraction form
    23,431.90/32,335.58 = 12,821.30/x
  3. Step 3: Cross multiply
    23,431.90x = 32,335.58 × 12,821.30
  4. Step 4: Simplify right side
    23,431.90x = 414,584,171.85
  5. Step 5: Solve for x
    x = 414,584,171.85/23,431.90
  6. Step 6: Final answer
    x = 17,693.15

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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.