Home / 30,899.24-42,639.24-17,469.64

Finding the Fourth Proportional to 30,899.24, 42,639.24 and 17,469.64

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Solution

The fourth proportional to 30,899.24, 42,639.24 and 17,469.64 is: 24,107.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,899.24 : 42,639.24 = 17,469.64 : x
  2. Step 2: Convert to fraction form
    30,899.24/42,639.24 = 17,469.64/x
  3. Step 3: Cross multiply
    30,899.24x = 42,639.24 × 17,469.64
  4. Step 4: Simplify right side
    30,899.24x = 744,892,172.67
  5. Step 5: Solve for x
    x = 744,892,172.67/30,899.24
  6. Step 6: Final answer
    x = 24,107.14

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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.