Home / 28,452.94-39,269.01-15,878.50

Finding the Fourth Proportional to 28,452.94, 39,269.01 and 15,878.50

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Solution

The fourth proportional to 28,452.94, 39,269.01 and 15,878.50 is: 21,914.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.94 : 39,269.01 = 15,878.50 : x
  2. Step 2: Convert to fraction form
    28,452.94/39,269.01 = 15,878.50/x
  3. Step 3: Cross multiply
    28,452.94x = 39,269.01 × 15,878.50
  4. Step 4: Simplify right side
    28,452.94x = 623,532,975.29
  5. Step 5: Solve for x
    x = 623,532,975.29/28,452.94
  6. Step 6: Final answer
    x = 21,914.54

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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.