Home / 20,168.16-27,783.88-14,107.08

Finding the Fourth Proportional to 20,168.16, 27,783.88 and 14,107.08

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Solution

The fourth proportional to 20,168.16, 27,783.88 and 14,107.08 is: 19,434.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168.16 : 27,783.88 = 14,107.08 : x
  2. Step 2: Convert to fraction form
    20,168.16/27,783.88 = 14,107.08/x
  3. Step 3: Cross multiply
    20,168.16x = 27,783.88 × 14,107.08
  4. Step 4: Simplify right side
    20,168.16x = 391,949,402.64
  5. Step 5: Solve for x
    x = 391,949,402.64/20,168.16
  6. Step 6: Final answer
    x = 19,434.07

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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.