Home / 30,152.16-41,571.74-21,548.62

Finding the Fourth Proportional to 30,152.16, 41,571.74 and 21,548.62

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Solution

The fourth proportional to 30,152.16, 41,571.74 and 21,548.62 is: 29,709.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,152.16 : 41,571.74 = 21,548.62 : x
  2. Step 2: Convert to fraction form
    30,152.16/41,571.74 = 21,548.62/x
  3. Step 3: Cross multiply
    30,152.16x = 41,571.74 × 21,548.62
  4. Step 4: Simplify right side
    30,152.16x = 895,813,628.00
  5. Step 5: Solve for x
    x = 895,813,628.00/30,152.16
  6. Step 6: Final answer
    x = 29,709.77

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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.