Home / 13,610.82-20,303.16-13,385.28

Finding the Fourth Proportional to 13,610.82, 20,303.16 and 13,385.28

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Solution

The fourth proportional to 13,610.82, 20,303.16 and 13,385.28 is: 19,966.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,610.82 : 20,303.16 = 13,385.28 : x
  2. Step 2: Convert to fraction form
    13,610.82/20,303.16 = 13,385.28/x
  3. Step 3: Cross multiply
    13,610.82x = 20,303.16 × 13,385.28
  4. Step 4: Simplify right side
    13,610.82x = 271,763,481.48
  5. Step 5: Solve for x
    x = 271,763,481.48/13,610.82
  6. Step 6: Final answer
    x = 19,966.72

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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.