Home / 30,428.02-41,988.27-16,998.22

Finding the Fourth Proportional to 30,428.02, 41,988.27 and 16,998.22

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Solution

The fourth proportional to 30,428.02, 41,988.27 and 16,998.22 is: 23,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,428.02 : 41,988.27 = 16,998.22 : x
  2. Step 2: Convert to fraction form
    30,428.02/41,988.27 = 16,998.22/x
  3. Step 3: Cross multiply
    30,428.02x = 41,988.27 × 16,998.22
  4. Step 4: Simplify right side
    30,428.02x = 713,725,850.88
  5. Step 5: Solve for x
    x = 713,725,850.88/30,428.02
  6. Step 6: Final answer
    x = 23,456.20

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Double scale
Find fourth proportional to 30,429.02, 41,989.65 and 16,999.22
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.