Home / 25,729.80-35,466.02-21,005.96

Finding the Fourth Proportional to 25,729.80, 35,466.02 and 21,005.96

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Solution

The fourth proportional to 25,729.80, 35,466.02 and 21,005.96 is: 28,954.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,729.80 : 35,466.02 = 21,005.96 : x
  2. Step 2: Convert to fraction form
    25,729.80/35,466.02 = 21,005.96/x
  3. Step 3: Cross multiply
    25,729.80x = 35,466.02 × 21,005.96
  4. Step 4: Simplify right side
    25,729.80x = 744,997,797.48
  5. Step 5: Solve for x
    x = 744,997,797.48/25,729.80
  6. Step 6: Final answer
    x = 28,954.67

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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.