Home / 19,255.88-28,932.54-18,478.28

Finding the Fourth Proportional to 19,255.88, 28,932.54 and 18,478.28

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Solution

The fourth proportional to 19,255.88, 28,932.54 and 18,478.28 is: 27,764.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.88 : 28,932.54 = 18,478.28 : x
  2. Step 2: Convert to fraction form
    19,255.88/28,932.54 = 18,478.28/x
  3. Step 3: Cross multiply
    19,255.88x = 28,932.54 × 18,478.28
  4. Step 4: Simplify right side
    19,255.88x = 534,623,575.23
  5. Step 5: Solve for x
    x = 534,623,575.23/19,255.88
  6. Step 6: Final answer
    x = 27,764.17

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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.