Home / 21,563.45-29,757.50-12,132.01

Finding the Fourth Proportional to 21,563.45, 29,757.50 and 12,132.01

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Solution

The fourth proportional to 21,563.45, 29,757.50 and 12,132.01 is: 16,742.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,563.45 : 29,757.50 = 12,132.01 : x
  2. Step 2: Convert to fraction form
    21,563.45/29,757.50 = 12,132.01/x
  3. Step 3: Cross multiply
    21,563.45x = 29,757.50 × 12,132.01
  4. Step 4: Simplify right side
    21,563.45x = 361,018,138.79
  5. Step 5: Solve for x
    x = 361,018,138.79/21,563.45
  6. Step 6: Final answer
    x = 16,742.14

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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.