Home / 20,554.36-28,377.24-13,493.16

Finding the Fourth Proportional to 20,554.36, 28,377.24 and 13,493.16

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Solution

The fourth proportional to 20,554.36, 28,377.24 and 13,493.16 is: 18,628.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.36 : 28,377.24 = 13,493.16 : x
  2. Step 2: Convert to fraction form
    20,554.36/28,377.24 = 13,493.16/x
  3. Step 3: Cross multiply
    20,554.36x = 28,377.24 × 13,493.16
  4. Step 4: Simplify right side
    20,554.36x = 382,898,639.68
  5. Step 5: Solve for x
    x = 382,898,639.68/20,554.36
  6. Step 6: Final answer
    x = 18,628.58

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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.