Home / 28,182.30-38,873.98-18,123.86

Finding the Fourth Proportional to 28,182.30, 38,873.98 and 18,123.86

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Solution

The fourth proportional to 28,182.30, 38,873.98 and 18,123.86 is: 24,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.30 : 38,873.98 = 18,123.86 : x
  2. Step 2: Convert to fraction form
    28,182.30/38,873.98 = 18,123.86/x
  3. Step 3: Cross multiply
    28,182.30x = 38,873.98 × 18,123.86
  4. Step 4: Simplify right side
    28,182.30x = 704,546,571.16
  5. Step 5: Solve for x
    x = 704,546,571.16/28,182.30
  6. Step 6: Final answer
    x = 24,999.61

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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.