Home / 28,576.60-39,434.32-15,828.92

Finding the Fourth Proportional to 28,576.60, 39,434.32 and 15,828.92

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Solution

The fourth proportional to 28,576.60, 39,434.32 and 15,828.92 is: 21,843.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,576.60 : 39,434.32 = 15,828.92 : x
  2. Step 2: Convert to fraction form
    28,576.60/39,434.32 = 15,828.92/x
  3. Step 3: Cross multiply
    28,576.60x = 39,434.32 × 15,828.92
  4. Step 4: Simplify right side
    28,576.60x = 624,202,696.53
  5. Step 5: Solve for x
    x = 624,202,696.53/28,576.60
  6. Step 6: Final answer
    x = 21,843.14

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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.