Home / 28,125.38-38,813.83-15,550.94

Finding the Fourth Proportional to 28,125.38, 38,813.83 and 15,550.94

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Solution

The fourth proportional to 28,125.38, 38,813.83 and 15,550.94 is: 21,460.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.38 : 38,813.83 = 15,550.94 : x
  2. Step 2: Convert to fraction form
    28,125.38/38,813.83 = 15,550.94/x
  3. Step 3: Cross multiply
    28,125.38x = 38,813.83 × 15,550.94
  4. Step 4: Simplify right side
    28,125.38x = 603,591,347.43
  5. Step 5: Solve for x
    x = 603,591,347.43/28,125.38
  6. Step 6: Final answer
    x = 21,460.74

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Half scale
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Double scale
Find fourth proportional to 28,126.38, 38,815.21 and 15,551.94
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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.