Home / 20,159.56-27,818.58-11,207.08

Finding the Fourth Proportional to 20,159.56, 27,818.58 and 11,207.08

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Solution

The fourth proportional to 20,159.56, 27,818.58 and 11,207.08 is: 15,464.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159.56 : 27,818.58 = 11,207.08 : x
  2. Step 2: Convert to fraction form
    20,159.56/27,818.58 = 11,207.08/x
  3. Step 3: Cross multiply
    20,159.56x = 27,818.58 × 11,207.08
  4. Step 4: Simplify right side
    20,159.56x = 311,765,051.55
  5. Step 5: Solve for x
    x = 311,765,051.55/20,159.56
  6. Step 6: Final answer
    x = 15,464.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.