Home / 20,144.64-30,214.48-10,291.04

Finding the Fourth Proportional to 20,144.64, 30,214.48 and 10,291.04

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Solution

The fourth proportional to 20,144.64, 30,214.48 and 10,291.04 is: 15,435.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.64 : 30,214.48 = 10,291.04 : x
  2. Step 2: Convert to fraction form
    20,144.64/30,214.48 = 10,291.04/x
  3. Step 3: Cross multiply
    20,144.64x = 30,214.48 × 10,291.04
  4. Step 4: Simplify right side
    20,144.64x = 310,938,422.26
  5. Step 5: Solve for x
    x = 310,938,422.26/20,144.64
  6. Step 6: Final answer
    x = 15,435.29

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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.