Home / 19,271.62-28,901.76-8,172.19

Finding the Fourth Proportional to 19,271.62, 28,901.76 and 8,172.19

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Solution

The fourth proportional to 19,271.62, 28,901.76 and 8,172.19 is: 12,255.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,271.62 : 28,901.76 = 8,172.19 : x
  2. Step 2: Convert to fraction form
    19,271.62/28,901.76 = 8,172.19/x
  3. Step 3: Cross multiply
    19,271.62x = 28,901.76 × 8,172.19
  4. Step 4: Simplify right side
    19,271.62x = 236,190,674.05
  5. Step 5: Solve for x
    x = 236,190,674.05/19,271.62
  6. Step 6: Final answer
    x = 12,255.88

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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.