Home / 28,123.20-38,796.24-16,785.24

Finding the Fourth Proportional to 28,123.20, 38,796.24 and 16,785.24

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Solution

The fourth proportional to 28,123.20, 38,796.24 and 16,785.24 is: 23,155.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,123.20 : 38,796.24 = 16,785.24 : x
  2. Step 2: Convert to fraction form
    28,123.20/38,796.24 = 16,785.24/x
  3. Step 3: Cross multiply
    28,123.20x = 38,796.24 × 16,785.24
  4. Step 4: Simplify right side
    28,123.20x = 651,204,199.50
  5. Step 5: Solve for x
    x = 651,204,199.50/28,123.20
  6. Step 6: Final answer
    x = 23,155.41

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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.