Home / 39,504.12-54,515.61-21,599.10

Finding the Fourth Proportional to 39,504.12, 54,515.61 and 21,599.10

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Solution

The fourth proportional to 39,504.12, 54,515.61 and 21,599.10 is: 29,806.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,504.12 : 54,515.61 = 21,599.10 : x
  2. Step 2: Convert to fraction form
    39,504.12/54,515.61 = 21,599.10/x
  3. Step 3: Cross multiply
    39,504.12x = 54,515.61 × 21,599.10
  4. Step 4: Simplify right side
    39,504.12x = 1,177,488,111.95
  5. Step 5: Solve for x
    x = 1,177,488,111.95/39,504.12
  6. Step 6: Final answer
    x = 29,806.72

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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.