Home / 21,673.84-29,910.48-13,285.52

Finding the Fourth Proportional to 21,673.84, 29,910.48 and 13,285.52

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Solution

The fourth proportional to 21,673.84, 29,910.48 and 13,285.52 is: 18,334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.84 : 29,910.48 = 13,285.52 : x
  2. Step 2: Convert to fraction form
    21,673.84/29,910.48 = 13,285.52/x
  3. Step 3: Cross multiply
    21,673.84x = 29,910.48 × 13,285.52
  4. Step 4: Simplify right side
    21,673.84x = 397,376,280.25
  5. Step 5: Solve for x
    x = 397,376,280.25/21,673.84
  6. Step 6: Final answer
    x = 18,334.37

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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.