Home / 28,099.96-38,779.50-15,524.44

Finding the Fourth Proportional to 28,099.96, 38,779.50 and 15,524.44

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Solution

The fourth proportional to 28,099.96, 38,779.50 and 15,524.44 is: 21,424.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.96 : 38,779.50 = 15,524.44 : x
  2. Step 2: Convert to fraction form
    28,099.96/38,779.50 = 15,524.44/x
  3. Step 3: Cross multiply
    28,099.96x = 38,779.50 × 15,524.44
  4. Step 4: Simplify right side
    28,099.96x = 602,030,020.98
  5. Step 5: Solve for x
    x = 602,030,020.98/28,099.96
  6. Step 6: Final answer
    x = 21,424.59

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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.