Home / 19,780.21-27,295.64-10,825.98

Finding the Fourth Proportional to 19,780.21, 27,295.64 and 10,825.98

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Solution

The fourth proportional to 19,780.21, 27,295.64 and 10,825.98 is: 14,939.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,780.21 : 27,295.64 = 10,825.98 : x
  2. Step 2: Convert to fraction form
    19,780.21/27,295.64 = 10,825.98/x
  3. Step 3: Cross multiply
    19,780.21x = 27,295.64 × 10,825.98
  4. Step 4: Simplify right side
    19,780.21x = 295,502,052.73
  5. Step 5: Solve for x
    x = 295,502,052.73/19,780.21
  6. Step 6: Final answer
    x = 14,939.28

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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.