Home / 28,618.56-39,282.96-25,404.48

Finding the Fourth Proportional to 28,618.56, 39,282.96 and 25,404.48

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Solution

The fourth proportional to 28,618.56, 39,282.96 and 25,404.48 is: 34,871.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,618.56 : 39,282.96 = 25,404.48 : x
  2. Step 2: Convert to fraction form
    28,618.56/39,282.96 = 25,404.48/x
  3. Step 3: Cross multiply
    28,618.56x = 39,282.96 × 25,404.48
  4. Step 4: Simplify right side
    28,618.56x = 997,963,171.66
  5. Step 5: Solve for x
    x = 997,963,171.66/28,618.56
  6. Step 6: Final answer
    x = 34,871.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.