Home / 21,199.73-29,249.70-13,250.03

Finding the Fourth Proportional to 21,199.73, 29,249.70 and 13,250.03

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Solution

The fourth proportional to 21,199.73, 29,249.70 and 13,250.03 is: 18,281.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.73 : 29,249.70 = 13,250.03 : x
  2. Step 2: Convert to fraction form
    21,199.73/29,249.70 = 13,250.03/x
  3. Step 3: Cross multiply
    21,199.73x = 29,249.70 × 13,250.03
  4. Step 4: Simplify right side
    21,199.73x = 387,559,402.49
  5. Step 5: Solve for x
    x = 387,559,402.49/21,199.73
  6. Step 6: Final answer
    x = 18,281.34

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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.