Home / 19,878.81-29,813.60-5,835.06

Finding the Fourth Proportional to 19,878.81, 29,813.60 and 5,835.06

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Solution

The fourth proportional to 19,878.81, 29,813.60 and 5,835.06 is: 8,751.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.81 : 29,813.60 = 5,835.06 : x
  2. Step 2: Convert to fraction form
    19,878.81/29,813.60 = 5,835.06/x
  3. Step 3: Cross multiply
    19,878.81x = 29,813.60 × 5,835.06
  4. Step 4: Simplify right side
    19,878.81x = 173,964,227.44
  5. Step 5: Solve for x
    x = 173,964,227.44/19,878.81
  6. Step 6: Final answer
    x = 8,751.24

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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.