Home / 20,066.10-30,131.55-15,141.30

Finding the Fourth Proportional to 20,066.10, 30,131.55 and 15,141.30

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Solution

The fourth proportional to 20,066.10, 30,131.55 and 15,141.30 is: 22,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.10 : 30,131.55 = 15,141.30 : x
  2. Step 2: Convert to fraction form
    20,066.10/30,131.55 = 15,141.30/x
  3. Step 3: Cross multiply
    20,066.10x = 30,131.55 × 15,141.30
  4. Step 4: Simplify right side
    20,066.10x = 456,230,838.02
  5. Step 5: Solve for x
    x = 456,230,838.02/20,066.10
  6. Step 6: Final answer
    x = 22,736.40

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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.