Home / 28,728.40-43,093.56-7,950.16

Finding the Fourth Proportional to 28,728.40, 43,093.56 and 7,950.16

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Solution

The fourth proportional to 28,728.40, 43,093.56 and 7,950.16 is: 11,925.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.40 : 43,093.56 = 7,950.16 : x
  2. Step 2: Convert to fraction form
    28,728.40/43,093.56 = 7,950.16/x
  3. Step 3: Cross multiply
    28,728.40x = 43,093.56 × 7,950.16
  4. Step 4: Simplify right side
    28,728.40x = 342,600,696.97
  5. Step 5: Solve for x
    x = 342,600,696.97/28,728.40
  6. Step 6: Final answer
    x = 11,925.51

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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.