Home / 20,503.64-28,297.62-14,205.08

Finding the Fourth Proportional to 20,503.64, 28,297.62 and 14,205.08

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Solution

The fourth proportional to 20,503.64, 28,297.62 and 14,205.08 is: 19,604.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503.64 : 28,297.62 = 14,205.08 : x
  2. Step 2: Convert to fraction form
    20,503.64/28,297.62 = 14,205.08/x
  3. Step 3: Cross multiply
    20,503.64x = 28,297.62 × 14,205.08
  4. Step 4: Simplify right side
    20,503.64x = 401,969,955.91
  5. Step 5: Solve for x
    x = 401,969,955.91/20,503.64
  6. Step 6: Final answer
    x = 19,604.81

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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.