Home / 20,354.36-28,073.22-13,637.84

Finding the Fourth Proportional to 20,354.36, 28,073.22 and 13,637.84

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Solution

The fourth proportional to 20,354.36, 28,073.22 and 13,637.84 is: 18,809.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354.36 : 28,073.22 = 13,637.84 : x
  2. Step 2: Convert to fraction form
    20,354.36/28,073.22 = 13,637.84/x
  3. Step 3: Cross multiply
    20,354.36x = 28,073.22 × 13,637.84
  4. Step 4: Simplify right side
    20,354.36x = 382,858,082.64
  5. Step 5: Solve for x
    x = 382,858,082.64/20,354.36
  6. Step 6: Final answer
    x = 18,809.64

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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.