Home / 28,629.18-42,915.85-13,632.27

Finding the Fourth Proportional to 28,629.18, 42,915.85 and 13,632.27

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Solution

The fourth proportional to 28,629.18, 42,915.85 and 13,632.27 is: 20,435.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,629.18 : 42,915.85 = 13,632.27 : x
  2. Step 2: Convert to fraction form
    28,629.18/42,915.85 = 13,632.27/x
  3. Step 3: Cross multiply
    28,629.18x = 42,915.85 × 13,632.27
  4. Step 4: Simplify right side
    28,629.18x = 585,040,420.40
  5. Step 5: Solve for x
    x = 585,040,420.40/28,629.18
  6. Step 6: Final answer
    x = 20,435.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.