Home / 30,007.36-41,391.84-21,041.92

Finding the Fourth Proportional to 30,007.36, 41,391.84 and 21,041.92

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Solution

The fourth proportional to 30,007.36, 41,391.84 and 21,041.92 is: 29,025.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,007.36 : 41,391.84 = 21,041.92 : x
  2. Step 2: Convert to fraction form
    30,007.36/41,391.84 = 21,041.92/x
  3. Step 3: Cross multiply
    30,007.36x = 41,391.84 × 21,041.92
  4. Step 4: Simplify right side
    30,007.36x = 870,963,785.93
  5. Step 5: Solve for x
    x = 870,963,785.93/30,007.36
  6. Step 6: Final answer
    x = 29,025.01

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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.