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Finding the Fourth Proportional to 28,297.63, 39,053.06 and 18,247

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Solution

The fourth proportional to 28,297.63, 39,053.06 and 18,247 is: 25,182.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,297.63 : 39,053.06 = 18,247 : x
  2. Step 2: Convert to fraction form
    28,297.63/39,053.06 = 18,247/x
  3. Step 3: Cross multiply
    28,297.63x = 39,053.06 × 18,247
  4. Step 4: Simplify right side
    28,297.63x = 712,601,185.82
  5. Step 5: Solve for x
    x = 712,601,185.82/28,297.63
  6. Step 6: Final answer
    x = 25,182.36

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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.