Home / 39,778.64-59,556.60-21,269.84

Finding the Fourth Proportional to 39,778.64, 59,556.60 and 21,269.84

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Solution

The fourth proportional to 39,778.64, 59,556.60 and 21,269.84 is: 31,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,778.64 : 59,556.60 = 21,269.84 : x
  2. Step 2: Convert to fraction form
    39,778.64/59,556.60 = 21,269.84/x
  3. Step 3: Cross multiply
    39,778.64x = 59,556.60 × 21,269.84
  4. Step 4: Simplify right side
    39,778.64x = 1,266,759,352.94
  5. Step 5: Solve for x
    x = 1,266,759,352.94/39,778.64
  6. Step 6: Final answer
    x = 31,845.22

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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.