Home / 28,525.44-39,361.62-15,777.74

Finding the Fourth Proportional to 28,525.44, 39,361.62 and 15,777.74

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Solution

The fourth proportional to 28,525.44, 39,361.62 and 15,777.74 is: 21,771.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.44 : 39,361.62 = 15,777.74 : x
  2. Step 2: Convert to fraction form
    28,525.44/39,361.62 = 15,777.74/x
  3. Step 3: Cross multiply
    28,525.44x = 39,361.62 × 15,777.74
  4. Step 4: Simplify right side
    28,525.44x = 621,037,406.34
  5. Step 5: Solve for x
    x = 621,037,406.34/28,525.44
  6. Step 6: Final answer
    x = 21,771.35

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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.