Home / 19,303.44-28,947.72-8,215.38

Finding the Fourth Proportional to 19,303.44, 28,947.72 and 8,215.38

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Solution

The fourth proportional to 19,303.44, 28,947.72 and 8,215.38 is: 12,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.44 : 28,947.72 = 8,215.38 : x
  2. Step 2: Convert to fraction form
    19,303.44/28,947.72 = 8,215.38/x
  3. Step 3: Cross multiply
    19,303.44x = 28,947.72 × 8,215.38
  4. Step 4: Simplify right side
    19,303.44x = 237,816,519.93
  5. Step 5: Solve for x
    x = 237,816,519.93/19,303.44
  6. Step 6: Final answer
    x = 12,319.90

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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.