Home / 19,085.90-28,629.74-15,747.95

Finding the Fourth Proportional to 19,085.90, 28,629.74 and 15,747.95

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Solution

The fourth proportional to 19,085.90, 28,629.74 and 15,747.95 is: 23,622.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,085.90 : 28,629.74 = 15,747.95 : x
  2. Step 2: Convert to fraction form
    19,085.90/28,629.74 = 15,747.95/x
  3. Step 3: Cross multiply
    19,085.90x = 28,629.74 × 15,747.95
  4. Step 4: Simplify right side
    19,085.90x = 450,859,824.98
  5. Step 5: Solve for x
    x = 450,859,824.98/19,085.90
  6. Step 6: Final answer
    x = 23,622.67

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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.