Home / 21,913.44-32,870.61-7,122.33

Finding the Fourth Proportional to 21,913.44, 32,870.61 and 7,122.33

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Solution

The fourth proportional to 21,913.44, 32,870.61 and 7,122.33 is: 10,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.44 : 32,870.61 = 7,122.33 : x
  2. Step 2: Convert to fraction form
    21,913.44/32,870.61 = 7,122.33/x
  3. Step 3: Cross multiply
    21,913.44x = 32,870.61 × 7,122.33
  4. Step 4: Simplify right side
    21,913.44x = 234,115,331.72
  5. Step 5: Solve for x
    x = 234,115,331.72/21,913.44
  6. Step 6: Final answer
    x = 10,683.64

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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.