Home / 28,242.92-38,980.78-16,305.54

Finding the Fourth Proportional to 28,242.92, 38,980.78 and 16,305.54

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Solution

The fourth proportional to 28,242.92, 38,980.78 and 16,305.54 is: 22,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,242.92 : 38,980.78 = 16,305.54 : x
  2. Step 2: Convert to fraction form
    28,242.92/38,980.78 = 16,305.54/x
  3. Step 3: Cross multiply
    28,242.92x = 38,980.78 × 16,305.54
  4. Step 4: Simplify right side
    28,242.92x = 635,602,667.52
  5. Step 5: Solve for x
    x = 635,602,667.52/28,242.92
  6. Step 6: Final answer
    x = 22,504.85

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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.