Home / 23,310.40-32,171.12-13,878.88

Finding the Fourth Proportional to 23,310.40, 32,171.12 and 13,878.88

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Solution

The fourth proportional to 23,310.40, 32,171.12 and 13,878.88 is: 19,154.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,310.40 : 32,171.12 = 13,878.88 : x
  2. Step 2: Convert to fraction form
    23,310.40/32,171.12 = 13,878.88/x
  3. Step 3: Cross multiply
    23,310.40x = 32,171.12 × 13,878.88
  4. Step 4: Simplify right side
    23,310.40x = 446,499,113.95
  5. Step 5: Solve for x
    x = 446,499,113.95/23,310.40
  6. Step 6: Final answer
    x = 19,154.50

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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.