Home / 30,982.11-42,755.45-16,835.01

Finding the Fourth Proportional to 30,982.11, 42,755.45 and 16,835.01

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Solution

The fourth proportional to 30,982.11, 42,755.45 and 16,835.01 is: 23,232.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,982.11 : 42,755.45 = 16,835.01 : x
  2. Step 2: Convert to fraction form
    30,982.11/42,755.45 = 16,835.01/x
  3. Step 3: Cross multiply
    30,982.11x = 42,755.45 × 16,835.01
  4. Step 4: Simplify right side
    30,982.11x = 719,788,428.30
  5. Step 5: Solve for x
    x = 719,788,428.30/30,982.11
  6. Step 6: Final answer
    x = 23,232.39

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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.