Home / 30,825.09-42,538.77-17,396.91

Finding the Fourth Proportional to 30,825.09, 42,538.77 and 17,396.91

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Solution

The fourth proportional to 30,825.09, 42,538.77 and 17,396.91 is: 24,007.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,825.09 : 42,538.77 = 17,396.91 : x
  2. Step 2: Convert to fraction form
    30,825.09/42,538.77 = 17,396.91/x
  3. Step 3: Cross multiply
    30,825.09x = 42,538.77 × 17,396.91
  4. Step 4: Simplify right side
    30,825.09x = 740,043,153.20
  5. Step 5: Solve for x
    x = 740,043,153.20/30,825.09
  6. Step 6: Final answer
    x = 24,007.82

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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.