Home / 21,930.45-32,890.63-6,136.59

Finding the Fourth Proportional to 21,930.45, 32,890.63 and 6,136.59

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Solution

The fourth proportional to 21,930.45, 32,890.63 and 6,136.59 is: 9,203.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930.45 : 32,890.63 = 6,136.59 : x
  2. Step 2: Convert to fraction form
    21,930.45/32,890.63 = 6,136.59/x
  3. Step 3: Cross multiply
    21,930.45x = 32,890.63 × 6,136.59
  4. Step 4: Simplify right side
    21,930.45x = 201,836,170.40
  5. Step 5: Solve for x
    x = 201,836,170.40/21,930.45
  6. Step 6: Final answer
    x = 9,203.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.