Home / 28,452.98-39,261.49-15,878.26

Finding the Fourth Proportional to 28,452.98, 39,261.49 and 15,878.26

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Solution

The fourth proportional to 28,452.98, 39,261.49 and 15,878.26 is: 21,909.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.98 : 39,261.49 = 15,878.26 : x
  2. Step 2: Convert to fraction form
    28,452.98/39,261.49 = 15,878.26/x
  3. Step 3: Cross multiply
    28,452.98x = 39,261.49 × 15,878.26
  4. Step 4: Simplify right side
    28,452.98x = 623,404,146.21
  5. Step 5: Solve for x
    x = 623,404,146.21/28,452.98
  6. Step 6: Final answer
    x = 21,909.98

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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.