Home / 21,563.79-29,757.27-12,003.36

Finding the Fourth Proportional to 21,563.79, 29,757.27 and 12,003.36

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Solution

The fourth proportional to 21,563.79, 29,757.27 and 12,003.36 is: 16,564.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,563.79 : 29,757.27 = 12,003.36 : x
  2. Step 2: Convert to fraction form
    21,563.79/29,757.27 = 12,003.36/x
  3. Step 3: Cross multiply
    21,563.79x = 29,757.27 × 12,003.36
  4. Step 4: Simplify right side
    21,563.79x = 357,187,224.43
  5. Step 5: Solve for x
    x = 357,187,224.43/21,563.79
  6. Step 6: Final answer
    x = 16,564.21

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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.