Home / 21,024.35-29,015.04-12,851.46

Finding the Fourth Proportional to 21,024.35, 29,015.04 and 12,851.46

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Solution

The fourth proportional to 21,024.35, 29,015.04 and 12,851.46 is: 17,735.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.35 : 29,015.04 = 12,851.46 : x
  2. Step 2: Convert to fraction form
    21,024.35/29,015.04 = 12,851.46/x
  3. Step 3: Cross multiply
    21,024.35x = 29,015.04 × 12,851.46
  4. Step 4: Simplify right side
    21,024.35x = 372,885,625.96
  5. Step 5: Solve for x
    x = 372,885,625.96/21,024.35
  6. Step 6: Final answer
    x = 17,735.90

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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.