Home / 28,642.74-39,540.36-19,098.54

Finding the Fourth Proportional to 28,642.74, 39,540.36 and 19,098.54

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Solution

The fourth proportional to 28,642.74, 39,540.36 and 19,098.54 is: 26,364.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,642.74 : 39,540.36 = 19,098.54 : x
  2. Step 2: Convert to fraction form
    28,642.74/39,540.36 = 19,098.54/x
  3. Step 3: Cross multiply
    28,642.74x = 39,540.36 × 19,098.54
  4. Step 4: Simplify right side
    28,642.74x = 755,163,147.07
  5. Step 5: Solve for x
    x = 755,163,147.07/28,642.74
  6. Step 6: Final answer
    x = 26,364.91

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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.