Home / 19,187.08-28,780.62-18,104.20

Finding the Fourth Proportional to 19,187.08, 28,780.62 and 18,104.20

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Solution

The fourth proportional to 19,187.08, 28,780.62 and 18,104.20 is: 27,156.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.08 : 28,780.62 = 18,104.20 : x
  2. Step 2: Convert to fraction form
    19,187.08/28,780.62 = 18,104.20/x
  3. Step 3: Cross multiply
    19,187.08x = 28,780.62 × 18,104.20
  4. Step 4: Simplify right side
    19,187.08x = 521,050,100.60
  5. Step 5: Solve for x
    x = 521,050,100.60/19,187.08
  6. Step 6: Final answer
    x = 27,156.30

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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.