Home / 28,078.08-42,097.92-19,194.88

Finding the Fourth Proportional to 28,078.08, 42,097.92 and 19,194.88

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Solution

The fourth proportional to 28,078.08, 42,097.92 and 19,194.88 is: 28,779.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.08 : 42,097.92 = 19,194.88 : x
  2. Step 2: Convert to fraction form
    28,078.08/42,097.92 = 19,194.88/x
  3. Step 3: Cross multiply
    28,078.08x = 42,097.92 × 19,194.88
  4. Step 4: Simplify right side
    28,078.08x = 808,064,522.65
  5. Step 5: Solve for x
    x = 808,064,522.65/28,078.08
  6. Step 6: Final answer
    x = 28,779.19

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1.5x scale

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.