Home / 23,133.36-31,942.44-21,364.32

Finding the Fourth Proportional to 23,133.36, 31,942.44 and 21,364.32

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Solution

The fourth proportional to 23,133.36, 31,942.44 and 21,364.32 is: 29,499.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,133.36 : 31,942.44 = 21,364.32 : x
  2. Step 2: Convert to fraction form
    23,133.36/31,942.44 = 21,364.32/x
  3. Step 3: Cross multiply
    23,133.36x = 31,942.44 × 21,364.32
  4. Step 4: Simplify right side
    23,133.36x = 682,428,509.74
  5. Step 5: Solve for x
    x = 682,428,509.74/23,133.36
  6. Step 6: Final answer
    x = 29,499.76

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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.