Home / 28,431.03-42,628.31-11,802.54

Finding the Fourth Proportional to 28,431.03, 42,628.31 and 11,802.54

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Solution

The fourth proportional to 28,431.03, 42,628.31 and 11,802.54 is: 17,696.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431.03 : 42,628.31 = 11,802.54 : x
  2. Step 2: Convert to fraction form
    28,431.03/42,628.31 = 11,802.54/x
  3. Step 3: Cross multiply
    28,431.03x = 42,628.31 × 11,802.54
  4. Step 4: Simplify right side
    28,431.03x = 503,122,479.01
  5. Step 5: Solve for x
    x = 503,122,479.01/28,431.03
  6. Step 6: Final answer
    x = 17,696.24

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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.