Home / 25,606.09-35,309.46-20,219.59

Finding the Fourth Proportional to 25,606.09, 35,309.46 and 20,219.59

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Solution

The fourth proportional to 25,606.09, 35,309.46 and 20,219.59 is: 27,881.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,606.09 : 35,309.46 = 20,219.59 : x
  2. Step 2: Convert to fraction form
    25,606.09/35,309.46 = 20,219.59/x
  3. Step 3: Cross multiply
    25,606.09x = 35,309.46 × 20,219.59
  4. Step 4: Simplify right side
    25,606.09x = 713,942,804.32
  5. Step 5: Solve for x
    x = 713,942,804.32/25,606.09
  6. Step 6: Final answer
    x = 27,881.76

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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.