Home / 28,823.44-39,783.88-18,779.44

Finding the Fourth Proportional to 28,823.44, 39,783.88 and 18,779.44

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Solution

The fourth proportional to 28,823.44, 39,783.88 and 18,779.44 is: 25,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,823.44 : 39,783.88 = 18,779.44 : x
  2. Step 2: Convert to fraction form
    28,823.44/39,783.88 = 18,779.44/x
  3. Step 3: Cross multiply
    28,823.44x = 39,783.88 × 18,779.44
  4. Step 4: Simplify right side
    28,823.44x = 747,118,987.43
  5. Step 5: Solve for x
    x = 747,118,987.43/28,823.44
  6. Step 6: Final answer
    x = 25,920.54

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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.