Home / 21,024.76-29,004.06-13,076.32

Finding the Fourth Proportional to 21,024.76, 29,004.06 and 13,076.32

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Solution

The fourth proportional to 21,024.76, 29,004.06 and 13,076.32 is: 18,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.76 : 29,004.06 = 13,076.32 : x
  2. Step 2: Convert to fraction form
    21,024.76/29,004.06 = 13,076.32/x
  3. Step 3: Cross multiply
    21,024.76x = 29,004.06 × 13,076.32
  4. Step 4: Simplify right side
    21,024.76x = 379,266,369.86
  5. Step 5: Solve for x
    x = 379,266,369.86/21,024.76
  6. Step 6: Final answer
    x = 18,039.03

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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.