Home / 18,840.86-28,261.30-11,045.42

Finding the Fourth Proportional to 18,840.86, 28,261.30 and 11,045.42

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Solution

The fourth proportional to 18,840.86, 28,261.30 and 11,045.42 is: 16,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.86 : 28,261.30 = 11,045.42 : x
  2. Step 2: Convert to fraction form
    18,840.86/28,261.30 = 11,045.42/x
  3. Step 3: Cross multiply
    18,840.86x = 28,261.30 × 11,045.42
  4. Step 4: Simplify right side
    18,840.86x = 312,157,928.25
  5. Step 5: Solve for x
    x = 312,157,928.25/18,840.86
  6. Step 6: Final answer
    x = 16,568.14

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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.