Home / 27,157.98-40,775.85-20,159.58

Finding the Fourth Proportional to 27,157.98, 40,775.85 and 20,159.58

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Solution

The fourth proportional to 27,157.98, 40,775.85 and 20,159.58 is: 30,268.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,157.98 : 40,775.85 = 20,159.58 : x
  2. Step 2: Convert to fraction form
    27,157.98/40,775.85 = 20,159.58/x
  3. Step 3: Cross multiply
    27,157.98x = 40,775.85 × 20,159.58
  4. Step 4: Simplify right side
    27,157.98x = 822,024,010.14
  5. Step 5: Solve for x
    x = 822,024,010.14/27,157.98
  6. Step 6: Final answer
    x = 30,268.23

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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.