Home / 28,427.60-39,239.88-17,103.44

Finding the Fourth Proportional to 28,427.60, 39,239.88 and 17,103.44

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Solution

The fourth proportional to 28,427.60, 39,239.88 and 17,103.44 is: 23,608.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427.60 : 39,239.88 = 17,103.44 : x
  2. Step 2: Convert to fraction form
    28,427.60/39,239.88 = 17,103.44/x
  3. Step 3: Cross multiply
    28,427.60x = 39,239.88 × 17,103.44
  4. Step 4: Simplify right side
    28,427.60x = 671,136,933.19
  5. Step 5: Solve for x
    x = 671,136,933.19/28,427.60
  6. Step 6: Final answer
    x = 23,608.64

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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.