Home / 38,639.12-57,883.47-28,489.01

Finding the Fourth Proportional to 38,639.12, 57,883.47 and 28,489.01

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Solution

The fourth proportional to 38,639.12, 57,883.47 and 28,489.01 is: 42,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639.12 : 57,883.47 = 28,489.01 : x
  2. Step 2: Convert to fraction form
    38,639.12/57,883.47 = 28,489.01/x
  3. Step 3: Cross multiply
    38,639.12x = 57,883.47 × 28,489.01
  4. Step 4: Simplify right side
    38,639.12x = 1,649,042,466.25
  5. Step 5: Solve for x
    x = 1,649,042,466.25/38,639.12
  6. Step 6: Final answer
    x = 42,678.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.