Home / 42,798.92-64,171.04-20,568.06

Finding the Fourth Proportional to 42,798.92, 64,171.04 and 20,568.06

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Solution

The fourth proportional to 42,798.92, 64,171.04 and 20,568.06 is: 30,838.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,798.92 : 64,171.04 = 20,568.06 : x
  2. Step 2: Convert to fraction form
    42,798.92/64,171.04 = 20,568.06/x
  3. Step 3: Cross multiply
    42,798.92x = 64,171.04 × 20,568.06
  4. Step 4: Simplify right side
    42,798.92x = 1,319,873,698.14
  5. Step 5: Solve for x
    x = 1,319,873,698.14/42,798.92
  6. Step 6: Final answer
    x = 30,838.95

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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.