Home / 14,420.39-21,503.30-13,906.44

Finding the Fourth Proportional to 14,420.39, 21,503.30 and 13,906.44

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Solution

The fourth proportional to 14,420.39, 21,503.30 and 13,906.44 is: 20,736.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.39 : 21,503.30 = 13,906.44 : x
  2. Step 2: Convert to fraction form
    14,420.39/21,503.30 = 13,906.44/x
  3. Step 3: Cross multiply
    14,420.39x = 21,503.30 × 13,906.44
  4. Step 4: Simplify right side
    14,420.39x = 299,034,281.72
  5. Step 5: Solve for x
    x = 299,034,281.72/14,420.39
  6. Step 6: Final answer
    x = 20,736.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.