Home / 28,025.82-38,673.68-15,763.05

Finding the Fourth Proportional to 28,025.82, 38,673.68 and 15,763.05

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Solution

The fourth proportional to 28,025.82, 38,673.68 and 15,763.05 is: 21,751.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,025.82 : 38,673.68 = 15,763.05 : x
  2. Step 2: Convert to fraction form
    28,025.82/38,673.68 = 15,763.05/x
  3. Step 3: Cross multiply
    28,025.82x = 38,673.68 × 15,763.05
  4. Step 4: Simplify right side
    28,025.82x = 609,615,072.71
  5. Step 5: Solve for x
    x = 609,615,072.71/28,025.82
  6. Step 6: Final answer
    x = 21,751.91

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Half scale
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Double scale
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Similar ratio
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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.