Home / 20,316.08-30,415.78-15,015.44

Finding the Fourth Proportional to 20,316.08, 30,415.78 and 15,015.44

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Solution

The fourth proportional to 20,316.08, 30,415.78 and 15,015.44 is: 22,480.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.08 : 30,415.78 = 15,015.44 : x
  2. Step 2: Convert to fraction form
    20,316.08/30,415.78 = 15,015.44/x
  3. Step 3: Cross multiply
    20,316.08x = 30,415.78 × 15,015.44
  4. Step 4: Simplify right side
    20,316.08x = 456,706,319.64
  5. Step 5: Solve for x
    x = 456,706,319.64/20,316.08
  6. Step 6: Final answer
    x = 22,480.04

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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.