Home / 14,031.20-21,046.80-13,383.20

Finding the Fourth Proportional to 14,031.20, 21,046.80 and 13,383.20

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Solution

The fourth proportional to 14,031.20, 21,046.80 and 13,383.20 is: 20,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,031.20 : 21,046.80 = 13,383.20 : x
  2. Step 2: Convert to fraction form
    14,031.20/21,046.80 = 13,383.20/x
  3. Step 3: Cross multiply
    14,031.20x = 21,046.80 × 13,383.20
  4. Step 4: Simplify right side
    14,031.20x = 281,673,533.76
  5. Step 5: Solve for x
    x = 281,673,533.76/14,031.20
  6. Step 6: Final answer
    x = 20,074.80

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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.