Home / 19,261.40-28,892.10-13,040.60

Finding the Fourth Proportional to 19,261.40, 28,892.10 and 13,040.60

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Solution

The fourth proportional to 19,261.40, 28,892.10 and 13,040.60 is: 19,560.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261.40 : 28,892.10 = 13,040.60 : x
  2. Step 2: Convert to fraction form
    19,261.40/28,892.10 = 13,040.60/x
  3. Step 3: Cross multiply
    19,261.40x = 28,892.10 × 13,040.60
  4. Step 4: Simplify right side
    19,261.40x = 376,770,319.26
  5. Step 5: Solve for x
    x = 376,770,319.26/19,261.40
  6. Step 6: Final answer
    x = 19,560.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.