Home / 20,467.28-30,677.88-10,086.32

Finding the Fourth Proportional to 20,467.28, 30,677.88 and 10,086.32

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Solution

The fourth proportional to 20,467.28, 30,677.88 and 10,086.32 is: 15,118.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.28 : 30,677.88 = 10,086.32 : x
  2. Step 2: Convert to fraction form
    20,467.28/30,677.88 = 10,086.32/x
  3. Step 3: Cross multiply
    20,467.28x = 30,677.88 × 10,086.32
  4. Step 4: Simplify right side
    20,467.28x = 309,426,914.60
  5. Step 5: Solve for x
    x = 309,426,914.60/20,467.28
  6. Step 6: Final answer
    x = 15,118.13

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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.