Home / 26,570.64-39,836.44-12,729.36

Finding the Fourth Proportional to 26,570.64, 39,836.44 and 12,729.36

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Solution

The fourth proportional to 26,570.64, 39,836.44 and 12,729.36 is: 19,084.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,570.64 : 39,836.44 = 12,729.36 : x
  2. Step 2: Convert to fraction form
    26,570.64/39,836.44 = 12,729.36/x
  3. Step 3: Cross multiply
    26,570.64x = 39,836.44 × 12,729.36
  4. Step 4: Simplify right side
    26,570.64x = 507,092,385.88
  5. Step 5: Solve for x
    x = 507,092,385.88/26,570.64
  6. Step 6: Final answer
    x = 19,084.69

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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.