Home / 38,286.81-52,840.55-21,519.81

Finding the Fourth Proportional to 38,286.81, 52,840.55 and 21,519.81

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Solution

The fourth proportional to 38,286.81, 52,840.55 and 21,519.81 is: 29,700.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,286.81 : 52,840.55 = 21,519.81 : x
  2. Step 2: Convert to fraction form
    38,286.81/52,840.55 = 21,519.81/x
  3. Step 3: Cross multiply
    38,286.81x = 52,840.55 × 21,519.81
  4. Step 4: Simplify right side
    38,286.81x = 1,137,118,488.70
  5. Step 5: Solve for x
    x = 1,137,118,488.70/38,286.81
  6. Step 6: Final answer
    x = 29,700.01

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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.