Home / 39,519.60-59,241.60-19,778.28

Finding the Fourth Proportional to 39,519.60, 59,241.60 and 19,778.28

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Solution

The fourth proportional to 39,519.60, 59,241.60 and 19,778.28 is: 29,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,519.60 : 59,241.60 = 19,778.28 : x
  2. Step 2: Convert to fraction form
    39,519.60/59,241.60 = 19,778.28/x
  3. Step 3: Cross multiply
    39,519.60x = 59,241.60 × 19,778.28
  4. Step 4: Simplify right side
    39,519.60x = 1,171,696,952.45
  5. Step 5: Solve for x
    x = 1,171,696,952.45/39,519.60
  6. Step 6: Final answer
    x = 29,648.50

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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.