Home / 30,611.65-42,238.74-17,183.47

Finding the Fourth Proportional to 30,611.65, 42,238.74 and 17,183.47

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Solution

The fourth proportional to 30,611.65, 42,238.74 and 17,183.47 is: 23,710.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.65 : 42,238.74 = 17,183.47 : x
  2. Step 2: Convert to fraction form
    30,611.65/42,238.74 = 17,183.47/x
  3. Step 3: Cross multiply
    30,611.65x = 42,238.74 × 17,183.47
  4. Step 4: Simplify right side
    30,611.65x = 725,808,121.63
  5. Step 5: Solve for x
    x = 725,808,121.63/30,611.65
  6. Step 6: Final answer
    x = 23,710.19

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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.