Home / 28,169.37-42,232.19-13,356.09

Finding the Fourth Proportional to 28,169.37, 42,232.19 and 13,356.09

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Solution

The fourth proportional to 28,169.37, 42,232.19 and 13,356.09 is: 20,023.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,169.37 : 42,232.19 = 13,356.09 : x
  2. Step 2: Convert to fraction form
    28,169.37/42,232.19 = 13,356.09/x
  3. Step 3: Cross multiply
    28,169.37x = 42,232.19 × 13,356.09
  4. Step 4: Simplify right side
    28,169.37x = 564,056,863.76
  5. Step 5: Solve for x
    x = 564,056,863.76/28,169.37
  6. Step 6: Final answer
    x = 20,023.77

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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.