Home / 30,276.58-41,758.01-19,669.63

Finding the Fourth Proportional to 30,276.58, 41,758.01 and 19,669.63

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Solution

The fourth proportional to 30,276.58, 41,758.01 and 19,669.63 is: 27,128.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.58 : 41,758.01 = 19,669.63 : x
  2. Step 2: Convert to fraction form
    30,276.58/41,758.01 = 19,669.63/x
  3. Step 3: Cross multiply
    30,276.58x = 41,758.01 × 19,669.63
  4. Step 4: Simplify right side
    30,276.58x = 821,364,477.25
  5. Step 5: Solve for x
    x = 821,364,477.25/30,276.58
  6. Step 6: Final answer
    x = 27,128.71

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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.