Home / 30,984.87-42,759.18-16,837.68

Finding the Fourth Proportional to 30,984.87, 42,759.18 and 16,837.68

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Solution

The fourth proportional to 30,984.87, 42,759.18 and 16,837.68 is: 23,236.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,984.87 : 42,759.18 = 16,837.68 : x
  2. Step 2: Convert to fraction form
    30,984.87/42,759.18 = 16,837.68/x
  3. Step 3: Cross multiply
    30,984.87x = 42,759.18 × 16,837.68
  4. Step 4: Simplify right side
    30,984.87x = 719,965,389.90
  5. Step 5: Solve for x
    x = 719,965,389.90/30,984.87
  6. Step 6: Final answer
    x = 23,236.03

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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.