Home / 28,586.28-42,879.44-11,937.24

Finding the Fourth Proportional to 28,586.28, 42,879.44 and 11,937.24

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Solution

The fourth proportional to 28,586.28, 42,879.44 and 11,937.24 is: 17,905.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,586.28 : 42,879.44 = 11,937.24 : x
  2. Step 2: Convert to fraction form
    28,586.28/42,879.44 = 11,937.24/x
  3. Step 3: Cross multiply
    28,586.28x = 42,879.44 × 11,937.24
  4. Step 4: Simplify right side
    28,586.28x = 511,862,106.66
  5. Step 5: Solve for x
    x = 511,862,106.66/28,586.28
  6. Step 6: Final answer
    x = 17,905.87

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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.