Home / 30,643.77-42,286.13-17,217.26

Finding the Fourth Proportional to 30,643.77, 42,286.13 and 17,217.26

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Solution

The fourth proportional to 30,643.77, 42,286.13 and 17,217.26 is: 23,758.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,643.77 : 42,286.13 = 17,217.26 : x
  2. Step 2: Convert to fraction form
    30,643.77/42,286.13 = 17,217.26/x
  3. Step 3: Cross multiply
    30,643.77x = 42,286.13 × 17,217.26
  4. Step 4: Simplify right side
    30,643.77x = 728,051,294.60
  5. Step 5: Solve for x
    x = 728,051,294.60/30,643.77
  6. Step 6: Final answer
    x = 23,758.54

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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.