Home / 19,538.29-29,283.39-11,111.86

Finding the Fourth Proportional to 19,538.29, 29,283.39 and 11,111.86

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Solution

The fourth proportional to 19,538.29, 29,283.39 and 11,111.86 is: 16,654.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,538.29 : 29,283.39 = 11,111.86 : x
  2. Step 2: Convert to fraction form
    19,538.29/29,283.39 = 11,111.86/x
  3. Step 3: Cross multiply
    19,538.29x = 29,283.39 × 11,111.86
  4. Step 4: Simplify right side
    19,538.29x = 325,393,017.72
  5. Step 5: Solve for x
    x = 325,393,017.72/19,538.29
  6. Step 6: Final answer
    x = 16,654.12

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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.