Home / 19,225.45-28,838.18-8,129.26

Finding the Fourth Proportional to 19,225.45, 28,838.18 and 8,129.26

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Solution

The fourth proportional to 19,225.45, 28,838.18 and 8,129.26 is: 12,193.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,225.45 : 28,838.18 = 8,129.26 : x
  2. Step 2: Convert to fraction form
    19,225.45/28,838.18 = 8,129.26/x
  3. Step 3: Cross multiply
    19,225.45x = 28,838.18 × 8,129.26
  4. Step 4: Simplify right side
    19,225.45x = 234,433,063.15
  5. Step 5: Solve for x
    x = 234,433,063.15/19,225.45
  6. Step 6: Final answer
    x = 12,193.89

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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.