Home / 30,115.09-41,557.59-16,686.91

Finding the Fourth Proportional to 30,115.09, 41,557.59 and 16,686.91

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Solution

The fourth proportional to 30,115.09, 41,557.59 and 16,686.91 is: 23,027.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.09 : 41,557.59 = 16,686.91 : x
  2. Step 2: Convert to fraction form
    30,115.09/41,557.59 = 16,686.91/x
  3. Step 3: Cross multiply
    30,115.09x = 41,557.59 × 16,686.91
  4. Step 4: Simplify right side
    30,115.09x = 693,467,556.36
  5. Step 5: Solve for x
    x = 693,467,556.36/30,115.09
  6. Step 6: Final answer
    x = 23,027.25

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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.