Home / 35,220.72-52,826.40-12,729.09

Finding the Fourth Proportional to 35,220.72, 52,826.40 and 12,729.09

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Solution

The fourth proportional to 35,220.72, 52,826.40 and 12,729.09 is: 19,091.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,220.72 : 52,826.40 = 12,729.09 : x
  2. Step 2: Convert to fraction form
    35,220.72/52,826.40 = 12,729.09/x
  3. Step 3: Cross multiply
    35,220.72x = 52,826.40 × 12,729.09
  4. Step 4: Simplify right side
    35,220.72x = 672,431,999.98
  5. Step 5: Solve for x
    x = 672,431,999.98/35,220.72
  6. Step 6: Final answer
    x = 19,091.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.