Home / 38,578.91-53,269.10-29,612.21

Finding the Fourth Proportional to 38,578.91, 53,269.10 and 29,612.21

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Solution

The fourth proportional to 38,578.91, 53,269.10 and 29,612.21 is: 40,888.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,578.91 : 53,269.10 = 29,612.21 : x
  2. Step 2: Convert to fraction form
    38,578.91/53,269.10 = 29,612.21/x
  3. Step 3: Cross multiply
    38,578.91x = 53,269.10 × 29,612.21
  4. Step 4: Simplify right side
    38,578.91x = 1,577,415,361.30
  5. Step 5: Solve for x
    x = 1,577,415,361.30/38,578.91
  6. Step 6: Final answer
    x = 40,888.03

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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.