Home / 38,393.39-52,987.19-21,399.19

Finding the Fourth Proportional to 38,393.39, 52,987.19 and 21,399.19

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Solution

The fourth proportional to 38,393.39, 52,987.19 and 21,399.19 is: 29,533.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,393.39 : 52,987.19 = 21,399.19 : x
  2. Step 2: Convert to fraction form
    38,393.39/52,987.19 = 21,399.19/x
  3. Step 3: Cross multiply
    38,393.39x = 52,987.19 × 21,399.19
  4. Step 4: Simplify right side
    38,393.39x = 1,133,882,706.91
  5. Step 5: Solve for x
    x = 1,133,882,706.91/38,393.39
  6. Step 6: Final answer
    x = 29,533.28

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Half scale
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Double scale
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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.