Home / 39,503.99-54,515.52-21,599.15

Finding the Fourth Proportional to 39,503.99, 54,515.52 and 21,599.15

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Solution

The fourth proportional to 39,503.99, 54,515.52 and 21,599.15 is: 29,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,503.99 : 54,515.52 = 21,599.15 : x
  2. Step 2: Convert to fraction form
    39,503.99/54,515.52 = 21,599.15/x
  3. Step 3: Cross multiply
    39,503.99x = 54,515.52 × 21,599.15
  4. Step 4: Simplify right side
    39,503.99x = 1,177,488,621.23
  5. Step 5: Solve for x
    x = 1,177,488,621.23/39,503.99
  6. Step 6: Final answer
    x = 29,806.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.