Home / 30,445.17-41,936.19-21,476.91

Finding the Fourth Proportional to 30,445.17, 41,936.19 and 21,476.91

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Solution

The fourth proportional to 30,445.17, 41,936.19 and 21,476.91 is: 29,583.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,445.17 : 41,936.19 = 21,476.91 : x
  2. Step 2: Convert to fraction form
    30,445.17/41,936.19 = 21,476.91/x
  3. Step 3: Cross multiply
    30,445.17x = 41,936.19 × 21,476.91
  4. Step 4: Simplify right side
    30,445.17x = 900,659,778.37
  5. Step 5: Solve for x
    x = 900,659,778.37/30,445.17
  6. Step 6: Final answer
    x = 29,583.01

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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.