Home / 38,390.36-57,511.42-21,699.29

Finding the Fourth Proportional to 38,390.36, 57,511.42 and 21,699.29

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Solution

The fourth proportional to 38,390.36, 57,511.42 and 21,699.29 is: 32,507.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,390.36 : 57,511.42 = 21,699.29 : x
  2. Step 2: Convert to fraction form
    38,390.36/57,511.42 = 21,699.29/x
  3. Step 3: Cross multiply
    38,390.36x = 57,511.42 × 21,699.29
  4. Step 4: Simplify right side
    38,390.36x = 1,247,957,070.42
  5. Step 5: Solve for x
    x = 1,247,957,070.42/38,390.36
  6. Step 6: Final answer
    x = 32,507.05

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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.