Home / 28,539.57-39,393.63-19,599.60

Finding the Fourth Proportional to 28,539.57, 39,393.63 and 19,599.60

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Solution

The fourth proportional to 28,539.57, 39,393.63 and 19,599.60 is: 27,053.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.57 : 39,393.63 = 19,599.60 : x
  2. Step 2: Convert to fraction form
    28,539.57/39,393.63 = 19,599.60/x
  3. Step 3: Cross multiply
    28,539.57x = 39,393.63 × 19,599.60
  4. Step 4: Simplify right side
    28,539.57x = 772,099,390.55
  5. Step 5: Solve for x
    x = 772,099,390.55/28,539.57
  6. Step 6: Final answer
    x = 27,053.64

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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.