Home / 28,278.50-39,027.93-17,100.58

Finding the Fourth Proportional to 28,278.50, 39,027.93 and 17,100.58

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Solution

The fourth proportional to 28,278.50, 39,027.93 and 17,100.58 is: 23,600.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.50 : 39,027.93 = 17,100.58 : x
  2. Step 2: Convert to fraction form
    28,278.50/39,027.93 = 17,100.58/x
  3. Step 3: Cross multiply
    28,278.50x = 39,027.93 × 17,100.58
  4. Step 4: Simplify right side
    28,278.50x = 667,400,239.20
  5. Step 5: Solve for x
    x = 667,400,239.20/28,278.50
  6. Step 6: Final answer
    x = 23,600.98

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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.