Home / 30,054.12-41,483.34-21,103.80

Finding the Fourth Proportional to 30,054.12, 41,483.34 and 21,103.80

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Solution

The fourth proportional to 30,054.12, 41,483.34 and 21,103.80 is: 29,129.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,054.12 : 41,483.34 = 21,103.80 : x
  2. Step 2: Convert to fraction form
    30,054.12/41,483.34 = 21,103.80/x
  3. Step 3: Cross multiply
    30,054.12x = 41,483.34 × 21,103.80
  4. Step 4: Simplify right side
    30,054.12x = 875,456,110.69
  5. Step 5: Solve for x
    x = 875,456,110.69/30,054.12
  6. Step 6: Final answer
    x = 29,129.32

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Double scale
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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.