Home / 23,985.15-33,099.65-13,375.45

Finding the Fourth Proportional to 23,985.15, 33,099.65 and 13,375.45

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Solution

The fourth proportional to 23,985.15, 33,099.65 and 13,375.45 is: 18,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,985.15 : 33,099.65 = 13,375.45 : x
  2. Step 2: Convert to fraction form
    23,985.15/33,099.65 = 13,375.45/x
  3. Step 3: Cross multiply
    23,985.15x = 33,099.65 × 13,375.45
  4. Step 4: Simplify right side
    23,985.15x = 442,722,713.59
  5. Step 5: Solve for x
    x = 442,722,713.59/23,985.15
  6. Step 6: Final answer
    x = 18,458.20

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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.