Home / 25,811.64-35,630.91-21,853.26

Finding the Fourth Proportional to 25,811.64, 35,630.91 and 21,853.26

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Solution

The fourth proportional to 25,811.64, 35,630.91 and 21,853.26 is: 30,166.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.64 : 35,630.91 = 21,853.26 : x
  2. Step 2: Convert to fraction form
    25,811.64/35,630.91 = 21,853.26/x
  3. Step 3: Cross multiply
    25,811.64x = 35,630.91 × 21,853.26
  4. Step 4: Simplify right side
    25,811.64x = 778,651,540.27
  5. Step 5: Solve for x
    x = 778,651,540.27/25,811.64
  6. Step 6: Final answer
    x = 30,166.68

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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.