Home / 14,421.39-21,504.79-13,907.44

Finding the Fourth Proportional to 14,421.39, 21,504.79 and 13,907.44

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Solution

The fourth proportional to 14,421.39, 21,504.79 and 13,907.44 is: 20,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.39 : 21,504.79 = 13,907.44 : x
  2. Step 2: Convert to fraction form
    14,421.39/21,504.79 = 13,907.44/x
  3. Step 3: Cross multiply
    14,421.39x = 21,504.79 × 13,907.44
  4. Step 4: Simplify right side
    14,421.39x = 299,076,576.64
  5. Step 5: Solve for x
    x = 299,076,576.64/14,421.39
  6. Step 6: Final answer
    x = 20,738.40

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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.