Home / 30,131.37-41,529.36-20,041.77

Finding the Fourth Proportional to 30,131.37, 41,529.36 and 20,041.77

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Solution

The fourth proportional to 30,131.37, 41,529.36 and 20,041.77 is: 27,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,131.37 : 41,529.36 = 20,041.77 : x
  2. Step 2: Convert to fraction form
    30,131.37/41,529.36 = 20,041.77/x
  3. Step 3: Cross multiply
    30,131.37x = 41,529.36 × 20,041.77
  4. Step 4: Simplify right side
    30,131.37x = 832,321,881.37
  5. Step 5: Solve for x
    x = 832,321,881.37/30,131.37
  6. Step 6: Final answer
    x = 27,623.10

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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.