Home / 16,656.81-22,996.58-15,857.56

Finding the Fourth Proportional to 16,656.81, 22,996.58 and 15,857.56

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Solution

The fourth proportional to 16,656.81, 22,996.58 and 15,857.56 is: 21,893.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,656.81 : 22,996.58 = 15,857.56 : x
  2. Step 2: Convert to fraction form
    16,656.81/22,996.58 = 15,857.56/x
  3. Step 3: Cross multiply
    16,656.81x = 22,996.58 × 15,857.56
  4. Step 4: Simplify right side
    16,656.81x = 364,669,647.14
  5. Step 5: Solve for x
    x = 364,669,647.14/16,656.81
  6. Step 6: Final answer
    x = 21,893.13

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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.