Home / 28,276.54-38,999.99-19,208.90

Finding the Fourth Proportional to 28,276.54, 38,999.99 and 19,208.90

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Solution

The fourth proportional to 28,276.54, 38,999.99 and 19,208.90 is: 26,493.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,276.54 : 38,999.99 = 19,208.90 : x
  2. Step 2: Convert to fraction form
    28,276.54/38,999.99 = 19,208.90/x
  3. Step 3: Cross multiply
    28,276.54x = 38,999.99 × 19,208.90
  4. Step 4: Simplify right side
    28,276.54x = 749,146,760.93
  5. Step 5: Solve for x
    x = 749,146,760.93/28,276.54
  6. Step 6: Final answer
    x = 26,493.58

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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.