Home / 20,454.09-30,705.72-13,860.27

Finding the Fourth Proportional to 20,454.09, 30,705.72 and 13,860.27

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Solution

The fourth proportional to 20,454.09, 30,705.72 and 13,860.27 is: 20,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.09 : 30,705.72 = 13,860.27 : x
  2. Step 2: Convert to fraction form
    20,454.09/30,705.72 = 13,860.27/x
  3. Step 3: Cross multiply
    20,454.09x = 30,705.72 × 13,860.27
  4. Step 4: Simplify right side
    20,454.09x = 425,589,569.74
  5. Step 5: Solve for x
    x = 425,589,569.74/20,454.09
  6. Step 6: Final answer
    x = 20,807.06

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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.