Home / 30,048.12-41,475.06-21,097.80

Finding the Fourth Proportional to 30,048.12, 41,475.06 and 21,097.80

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Solution

The fourth proportional to 30,048.12, 41,475.06 and 21,097.80 is: 29,121.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,048.12 : 41,475.06 = 21,097.80 : x
  2. Step 2: Convert to fraction form
    30,048.12/41,475.06 = 21,097.80/x
  3. Step 3: Cross multiply
    30,048.12x = 41,475.06 × 21,097.80
  4. Step 4: Simplify right side
    30,048.12x = 875,032,520.87
  5. Step 5: Solve for x
    x = 875,032,520.87/30,048.12
  6. Step 6: Final answer
    x = 29,121.04

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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.