Home / 28,257.22-39,002.14-19,308.34

Finding the Fourth Proportional to 28,257.22, 39,002.14 and 19,308.34

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Solution

The fourth proportional to 28,257.22, 39,002.14 and 19,308.34 is: 26,650.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257.22 : 39,002.14 = 19,308.34 : x
  2. Step 2: Convert to fraction form
    28,257.22/39,002.14 = 19,308.34/x
  3. Step 3: Cross multiply
    28,257.22x = 39,002.14 × 19,308.34
  4. Step 4: Simplify right side
    28,257.22x = 753,066,579.85
  5. Step 5: Solve for x
    x = 753,066,579.85/28,257.22
  6. Step 6: Final answer
    x = 26,650.41

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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.