Home / 28,576.21-39,435.49-15,829.59

Finding the Fourth Proportional to 28,576.21, 39,435.49 and 15,829.59

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Solution

The fourth proportional to 28,576.21, 39,435.49 and 15,829.59 is: 21,845.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.21 : 39,435.49 = 15,829.59 : x
  2. Step 2: Convert to fraction form
    28,576.21/39,435.49 = 15,829.59/x
  3. Step 3: Cross multiply
    28,576.21x = 39,435.49 × 15,829.59
  4. Step 4: Simplify right side
    28,576.21x = 624,247,598.58
  5. Step 5: Solve for x
    x = 624,247,598.58/28,576.21
  6. Step 6: Final answer
    x = 21,845.01

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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.