Home / 38,178.98-52,685.17-21,183.03

Finding the Fourth Proportional to 38,178.98, 52,685.17 and 21,183.03

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Solution

The fourth proportional to 38,178.98, 52,685.17 and 21,183.03 is: 29,231.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,178.98 : 52,685.17 = 21,183.03 : x
  2. Step 2: Convert to fraction form
    38,178.98/52,685.17 = 21,183.03/x
  3. Step 3: Cross multiply
    38,178.98x = 52,685.17 × 21,183.03
  4. Step 4: Simplify right side
    38,178.98x = 1,116,031,647.16
  5. Step 5: Solve for x
    x = 1,116,031,647.16/38,178.98
  6. Step 6: Final answer
    x = 29,231.57

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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.