Home / 20,156.54-27,818.29-11,204.90

Finding the Fourth Proportional to 20,156.54, 27,818.29 and 11,204.90

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Solution

The fourth proportional to 20,156.54, 27,818.29 and 11,204.90 is: 15,464.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.54 : 27,818.29 = 11,204.90 : x
  2. Step 2: Convert to fraction form
    20,156.54/27,818.29 = 11,204.90/x
  3. Step 3: Cross multiply
    20,156.54x = 27,818.29 × 11,204.90
  4. Step 4: Simplify right side
    20,156.54x = 311,700,962.51
  5. Step 5: Solve for x
    x = 311,700,962.51/20,156.54
  6. Step 6: Final answer
    x = 15,464.01

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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.