Home / 30,471.36-42,068.62-19,150.44

Finding the Fourth Proportional to 30,471.36, 42,068.62 and 19,150.44

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Solution

The fourth proportional to 30,471.36, 42,068.62 and 19,150.44 is: 26,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,471.36 : 42,068.62 = 19,150.44 : x
  2. Step 2: Convert to fraction form
    30,471.36/42,068.62 = 19,150.44/x
  3. Step 3: Cross multiply
    30,471.36x = 42,068.62 × 19,150.44
  4. Step 4: Simplify right side
    30,471.36x = 805,632,583.19
  5. Step 5: Solve for x
    x = 805,632,583.19/30,471.36
  6. Step 6: Final answer
    x = 26,439.01

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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.