Home / 18,261.90-27,458.05-16,818.48

Finding the Fourth Proportional to 18,261.90, 27,458.05 and 16,818.48

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Solution

The fourth proportional to 18,261.90, 27,458.05 and 16,818.48 is: 25,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261.90 : 27,458.05 = 16,818.48 : x
  2. Step 2: Convert to fraction form
    18,261.90/27,458.05 = 16,818.48/x
  3. Step 3: Cross multiply
    18,261.90x = 27,458.05 × 16,818.48
  4. Step 4: Simplify right side
    18,261.90x = 461,802,664.76
  5. Step 5: Solve for x
    x = 461,802,664.76/18,261.90
  6. Step 6: Final answer
    x = 25,287.77

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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.