Home / 42,157.26-63,243.99-18,783.63

Finding the Fourth Proportional to 42,157.26, 63,243.99 and 18,783.63

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Solution

The fourth proportional to 42,157.26, 63,243.99 and 18,783.63 is: 28,179.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,157.26 : 63,243.99 = 18,783.63 : x
  2. Step 2: Convert to fraction form
    42,157.26/63,243.99 = 18,783.63/x
  3. Step 3: Cross multiply
    42,157.26x = 63,243.99 × 18,783.63
  4. Step 4: Simplify right side
    42,157.26x = 1,187,951,707.88
  5. Step 5: Solve for x
    x = 1,187,951,707.88/42,157.26
  6. Step 6: Final answer
    x = 28,179.05

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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.