Home / 20,607.35-28,427.96-13,884.35

Finding the Fourth Proportional to 20,607.35, 28,427.96 and 13,884.35

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Solution

The fourth proportional to 20,607.35, 28,427.96 and 13,884.35 is: 19,153.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,607.35 : 28,427.96 = 13,884.35 : x
  2. Step 2: Convert to fraction form
    20,607.35/28,427.96 = 13,884.35/x
  3. Step 3: Cross multiply
    20,607.35x = 28,427.96 × 13,884.35
  4. Step 4: Simplify right side
    20,607.35x = 394,703,639.00
  5. Step 5: Solve for x
    x = 394,703,639.00/20,607.35
  6. Step 6: Final answer
    x = 19,153.54

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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.