Home / 20,256.28-30,350.40-14,383.78

Finding the Fourth Proportional to 20,256.28, 30,350.40 and 14,383.78

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Solution

The fourth proportional to 20,256.28, 30,350.40 and 14,383.78 is: 21,551.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.28 : 30,350.40 = 14,383.78 : x
  2. Step 2: Convert to fraction form
    20,256.28/30,350.40 = 14,383.78/x
  3. Step 3: Cross multiply
    20,256.28x = 30,350.40 × 14,383.78
  4. Step 4: Simplify right side
    20,256.28x = 436,553,476.51
  5. Step 5: Solve for x
    x = 436,553,476.51/20,256.28
  6. Step 6: Final answer
    x = 21,551.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.