Home / 28,576.13-39,433.84-15,829.26

Finding the Fourth Proportional to 28,576.13, 39,433.84 and 15,829.26

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Solution

The fourth proportional to 28,576.13, 39,433.84 and 15,829.26 is: 21,843.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.13 : 39,433.84 = 15,829.26 : x
  2. Step 2: Convert to fraction form
    28,576.13/39,433.84 = 15,829.26/x
  3. Step 3: Cross multiply
    28,576.13x = 39,433.84 × 15,829.26
  4. Step 4: Simplify right side
    28,576.13x = 624,208,318.71
  5. Step 5: Solve for x
    x = 624,208,318.71/28,576.13
  6. Step 6: Final answer
    x = 21,843.70

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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.