Home / 30,670.03-42,322.26-17,238.75

Finding the Fourth Proportional to 30,670.03, 42,322.26 and 17,238.75

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Solution

The fourth proportional to 30,670.03, 42,322.26 and 17,238.75 is: 23,788.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670.03 : 42,322.26 = 17,238.75 : x
  2. Step 2: Convert to fraction form
    30,670.03/42,322.26 = 17,238.75/x
  3. Step 3: Cross multiply
    30,670.03x = 42,322.26 × 17,238.75
  4. Step 4: Simplify right side
    30,670.03x = 729,582,859.58
  5. Step 5: Solve for x
    x = 729,582,859.58/30,670.03
  6. Step 6: Final answer
    x = 23,788.14

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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.