Home / 21,996.78-30,360.24-14,037.18

Finding the Fourth Proportional to 21,996.78, 30,360.24 and 14,037.18

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Solution

The fourth proportional to 21,996.78, 30,360.24 and 14,037.18 is: 19,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.78 : 30,360.24 = 14,037.18 : x
  2. Step 2: Convert to fraction form
    21,996.78/30,360.24 = 14,037.18/x
  3. Step 3: Cross multiply
    21,996.78x = 30,360.24 × 14,037.18
  4. Step 4: Simplify right side
    21,996.78x = 426,172,153.72
  5. Step 5: Solve for x
    x = 426,172,153.72/21,996.78
  6. Step 6: Final answer
    x = 19,374.30

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Half scale
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Double scale
Find fourth proportional to 21,997.78, 30,361.62 and 14,038.18
Similar ratio
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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.