Home / 27,157.44-40,756.32-20,210.88

Finding the Fourth Proportional to 27,157.44, 40,756.32 and 20,210.88

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Solution

The fourth proportional to 27,157.44, 40,756.32 and 20,210.88 is: 30,331.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,157.44 : 40,756.32 = 20,210.88 : x
  2. Step 2: Convert to fraction form
    27,157.44/40,756.32 = 20,210.88/x
  3. Step 3: Cross multiply
    27,157.44x = 40,756.32 × 20,210.88
  4. Step 4: Simplify right side
    27,157.44x = 823,721,092.76
  5. Step 5: Solve for x
    x = 823,721,092.76/27,157.44
  6. Step 6: Final answer
    x = 30,331.32

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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.