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Finding the Fourth Proportional to 38,015.81, 52,459.69 and 21,019.06

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Solution

The fourth proportional to 38,015.81, 52,459.69 and 21,019.06 is: 29,005.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,015.81 : 52,459.69 = 21,019.06 : x
  2. Step 2: Convert to fraction form
    38,015.81/52,459.69 = 21,019.06/x
  3. Step 3: Cross multiply
    38,015.81x = 52,459.69 × 21,019.06
  4. Step 4: Simplify right side
    38,015.81x = 1,102,653,371.69
  5. Step 5: Solve for x
    x = 1,102,653,371.69/38,015.81
  6. Step 6: Final answer
    x = 29,005.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.