Home / 19,165.26-28,755.45-12,590.22

Finding the Fourth Proportional to 19,165.26, 28,755.45 and 12,590.22

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Solution

The fourth proportional to 19,165.26, 28,755.45 and 12,590.22 is: 18,890.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.26 : 28,755.45 = 12,590.22 : x
  2. Step 2: Convert to fraction form
    19,165.26/28,755.45 = 12,590.22/x
  3. Step 3: Cross multiply
    19,165.26x = 28,755.45 × 12,590.22
  4. Step 4: Simplify right side
    19,165.26x = 362,037,441.70
  5. Step 5: Solve for x
    x = 362,037,441.70/19,165.26
  6. Step 6: Final answer
    x = 18,890.30

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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.