Home / 28,330.17-39,104.55-19,374.27

Finding the Fourth Proportional to 28,330.17, 39,104.55 and 19,374.27

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Solution

The fourth proportional to 28,330.17, 39,104.55 and 19,374.27 is: 26,742.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.17 : 39,104.55 = 19,374.27 : x
  2. Step 2: Convert to fraction form
    28,330.17/39,104.55 = 19,374.27/x
  3. Step 3: Cross multiply
    28,330.17x = 39,104.55 × 19,374.27
  4. Step 4: Simplify right side
    28,330.17x = 757,622,109.93
  5. Step 5: Solve for x
    x = 757,622,109.93/28,330.17
  6. Step 6: Final answer
    x = 26,742.59

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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.