Home / 20,638.36-30,891.90-14,766.25

Finding the Fourth Proportional to 20,638.36, 30,891.90 and 14,766.25

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Solution

The fourth proportional to 20,638.36, 30,891.90 and 14,766.25 is: 22,102.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,638.36 : 30,891.90 = 14,766.25 : x
  2. Step 2: Convert to fraction form
    20,638.36/30,891.90 = 14,766.25/x
  3. Step 3: Cross multiply
    20,638.36x = 30,891.90 × 14,766.25
  4. Step 4: Simplify right side
    20,638.36x = 456,157,518.38
  5. Step 5: Solve for x
    x = 456,157,518.38/20,638.36
  6. Step 6: Final answer
    x = 22,102.41

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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.