Home / 16,709.94-23,090.13-15,900.18

Finding the Fourth Proportional to 16,709.94, 23,090.13 and 15,900.18

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Solution

The fourth proportional to 16,709.94, 23,090.13 and 15,900.18 is: 21,971.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,709.94 : 23,090.13 = 15,900.18 : x
  2. Step 2: Convert to fraction form
    16,709.94/23,090.13 = 15,900.18/x
  3. Step 3: Cross multiply
    16,709.94x = 23,090.13 × 15,900.18
  4. Step 4: Simplify right side
    16,709.94x = 367,137,223.22
  5. Step 5: Solve for x
    x = 367,137,223.22/16,709.94
  6. Step 6: Final answer
    x = 21,971.19

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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.