Home / 20,153.64-27,807.72-11,199.26

Finding the Fourth Proportional to 20,153.64, 27,807.72 and 11,199.26

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Solution

The fourth proportional to 20,153.64, 27,807.72 and 11,199.26 is: 15,452.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,153.64 : 27,807.72 = 11,199.26 : x
  2. Step 2: Convert to fraction form
    20,153.64/27,807.72 = 11,199.26/x
  3. Step 3: Cross multiply
    20,153.64x = 27,807.72 × 11,199.26
  4. Step 4: Simplify right side
    20,153.64x = 311,425,886.29
  5. Step 5: Solve for x
    x = 311,425,886.29/20,153.64
  6. Step 6: Final answer
    x = 15,452.59

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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.