Home / 28,609.77-39,495.30-19,065.54

Finding the Fourth Proportional to 28,609.77, 39,495.30 and 19,065.54

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Solution

The fourth proportional to 28,609.77, 39,495.30 and 19,065.54 is: 26,319.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.77 : 39,495.30 = 19,065.54 : x
  2. Step 2: Convert to fraction form
    28,609.77/39,495.30 = 19,065.54/x
  3. Step 3: Cross multiply
    28,609.77x = 39,495.30 × 19,065.54
  4. Step 4: Simplify right side
    28,609.77x = 752,999,221.96
  5. Step 5: Solve for x
    x = 752,999,221.96/28,609.77
  6. Step 6: Final answer
    x = 26,319.65

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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.