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Finding the Fourth Proportional to 28,164.16, 42,247.03 and 10,630.08

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Solution

The fourth proportional to 28,164.16, 42,247.03 and 10,630.08 is: 15,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164.16 : 42,247.03 = 10,630.08 : x
  2. Step 2: Convert to fraction form
    28,164.16/42,247.03 = 10,630.08/x
  3. Step 3: Cross multiply
    28,164.16x = 42,247.03 × 10,630.08
  4. Step 4: Simplify right side
    28,164.16x = 449,089,308.66
  5. Step 5: Solve for x
    x = 449,089,308.66/28,164.16
  6. Step 6: Final answer
    x = 15,945.42

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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.