Home / 21,630.84-29,844.90-12,673.54

Finding the Fourth Proportional to 21,630.84, 29,844.90 and 12,673.54

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Solution

The fourth proportional to 21,630.84, 29,844.90 and 12,673.54 is: 17,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,630.84 : 29,844.90 = 12,673.54 : x
  2. Step 2: Convert to fraction form
    21,630.84/29,844.90 = 12,673.54/x
  3. Step 3: Cross multiply
    21,630.84x = 29,844.90 × 12,673.54
  4. Step 4: Simplify right side
    21,630.84x = 378,240,533.95
  5. Step 5: Solve for x
    x = 378,240,533.95/21,630.84
  6. Step 6: Final answer
    x = 17,486.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.