Home / 19,255.87-28,883.85-5,215.98

Finding the Fourth Proportional to 19,255.87, 28,883.85 and 5,215.98

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Solution

The fourth proportional to 19,255.87, 28,883.85 and 5,215.98 is: 7,823.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.87 : 28,883.85 = 5,215.98 : x
  2. Step 2: Convert to fraction form
    19,255.87/28,883.85 = 5,215.98/x
  3. Step 3: Cross multiply
    19,255.87x = 28,883.85 × 5,215.98
  4. Step 4: Simplify right side
    19,255.87x = 150,657,583.92
  5. Step 5: Solve for x
    x = 150,657,583.92/19,255.87
  6. Step 6: Final answer
    x = 7,823.98

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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.