Home / 28,091.88-42,123.61-9,365.36

Finding the Fourth Proportional to 28,091.88, 42,123.61 and 9,365.36

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Solution

The fourth proportional to 28,091.88, 42,123.61 and 9,365.36 is: 14,043.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,091.88 : 42,123.61 = 9,365.36 : x
  2. Step 2: Convert to fraction form
    28,091.88/42,123.61 = 9,365.36/x
  3. Step 3: Cross multiply
    28,091.88x = 42,123.61 × 9,365.36
  4. Step 4: Simplify right side
    28,091.88x = 394,502,573.24
  5. Step 5: Solve for x
    x = 394,502,573.24/28,091.88
  6. Step 6: Final answer
    x = 14,043.30

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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.