Home / 20,898.39-28,844.01-14,186.19

Finding the Fourth Proportional to 20,898.39, 28,844.01 and 14,186.19

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Solution

The fourth proportional to 20,898.39, 28,844.01 and 14,186.19 is: 19,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.39 : 28,844.01 = 14,186.19 : x
  2. Step 2: Convert to fraction form
    20,898.39/28,844.01 = 14,186.19/x
  3. Step 3: Cross multiply
    20,898.39x = 28,844.01 × 14,186.19
  4. Step 4: Simplify right side
    20,898.39x = 409,186,606.22
  5. Step 5: Solve for x
    x = 409,186,606.22/20,898.39
  6. Step 6: Final answer
    x = 19,579.81

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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.