Home / 38,578.65-53,243.45-21,583.85

Finding the Fourth Proportional to 38,578.65, 53,243.45 and 21,583.85

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Solution

The fourth proportional to 38,578.65, 53,243.45 and 21,583.85 is: 29,788.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,578.65 : 53,243.45 = 21,583.85 : x
  2. Step 2: Convert to fraction form
    38,578.65/53,243.45 = 21,583.85/x
  3. Step 3: Cross multiply
    38,578.65x = 53,243.45 × 21,583.85
  4. Step 4: Simplify right side
    38,578.65x = 1,149,198,264.15
  5. Step 5: Solve for x
    x = 1,149,198,264.15/38,578.65
  6. Step 6: Final answer
    x = 29,788.45

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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.