Home / 21,807.54-30,086.58-14,258.19

Finding the Fourth Proportional to 21,807.54, 30,086.58 and 14,258.19

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Solution

The fourth proportional to 21,807.54, 30,086.58 and 14,258.19 is: 19,671.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807.54 : 30,086.58 = 14,258.19 : x
  2. Step 2: Convert to fraction form
    21,807.54/30,086.58 = 14,258.19/x
  3. Step 3: Cross multiply
    21,807.54x = 30,086.58 × 14,258.19
  4. Step 4: Simplify right side
    21,807.54x = 428,980,174.09
  5. Step 5: Solve for x
    x = 428,980,174.09/21,807.54
  6. Step 6: Final answer
    x = 19,671.19

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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.