Home / 18,905.20-26,125.16-14,181.28

Finding the Fourth Proportional to 18,905.20, 26,125.16 and 14,181.28

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Solution

The fourth proportional to 18,905.20, 26,125.16 and 14,181.28 is: 19,597.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,905.20 : 26,125.16 = 14,181.28 : x
  2. Step 2: Convert to fraction form
    18,905.20/26,125.16 = 14,181.28/x
  3. Step 3: Cross multiply
    18,905.20x = 26,125.16 × 14,181.28
  4. Step 4: Simplify right side
    18,905.20x = 370,488,209.00
  5. Step 5: Solve for x
    x = 370,488,209.00/18,905.20
  6. Step 6: Final answer
    x = 19,597.16

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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.