Home / 28,033.08-42,042.30-13,238.04

Finding the Fourth Proportional to 28,033.08, 42,042.30 and 13,238.04

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Solution

The fourth proportional to 28,033.08, 42,042.30 and 13,238.04 is: 19,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,033.08 : 42,042.30 = 13,238.04 : x
  2. Step 2: Convert to fraction form
    28,033.08/42,042.30 = 13,238.04/x
  3. Step 3: Cross multiply
    28,033.08x = 42,042.30 × 13,238.04
  4. Step 4: Simplify right side
    28,033.08x = 556,557,649.09
  5. Step 5: Solve for x
    x = 556,557,649.09/28,033.08
  6. Step 6: Final answer
    x = 19,853.60

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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.