Home / 28,935.78-43,358.79-20,068.41

Finding the Fourth Proportional to 28,935.78, 43,358.79 and 20,068.41

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Solution

The fourth proportional to 28,935.78, 43,358.79 and 20,068.41 is: 30,071.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.78 : 43,358.79 = 20,068.41 : x
  2. Step 2: Convert to fraction form
    28,935.78/43,358.79 = 20,068.41/x
  3. Step 3: Cross multiply
    28,935.78x = 43,358.79 × 20,068.41
  4. Step 4: Simplify right side
    28,935.78x = 870,141,968.78
  5. Step 5: Solve for x
    x = 870,141,968.78/28,935.78
  6. Step 6: Final answer
    x = 30,071.49

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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.