Home / 25,990.26-35,866.36-20,330.79

Finding the Fourth Proportional to 25,990.26, 35,866.36 and 20,330.79

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Solution

The fourth proportional to 25,990.26, 35,866.36 and 20,330.79 is: 28,056.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,990.26 : 35,866.36 = 20,330.79 : x
  2. Step 2: Convert to fraction form
    25,990.26/35,866.36 = 20,330.79/x
  3. Step 3: Cross multiply
    25,990.26x = 35,866.36 × 20,330.79
  4. Step 4: Simplify right side
    25,990.26x = 729,191,433.22
  5. Step 5: Solve for x
    x = 729,191,433.22/25,990.26
  6. Step 6: Final answer
    x = 28,056.33

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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.