Home / 28,268.50-39,008.56-15,692.26

Finding the Fourth Proportional to 28,268.50, 39,008.56 and 15,692.26

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Solution

The fourth proportional to 28,268.50, 39,008.56 and 15,692.26 is: 21,654.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.50 : 39,008.56 = 15,692.26 : x
  2. Step 2: Convert to fraction form
    28,268.50/39,008.56 = 15,692.26/x
  3. Step 3: Cross multiply
    28,268.50x = 39,008.56 × 15,692.26
  4. Step 4: Simplify right side
    28,268.50x = 612,132,465.75
  5. Step 5: Solve for x
    x = 612,132,465.75/28,268.50
  6. Step 6: Final answer
    x = 21,654.23

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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.