Home / 20,265.56-27,963.06-11,312.72

Finding the Fourth Proportional to 20,265.56, 27,963.06 and 11,312.72

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Solution

The fourth proportional to 20,265.56, 27,963.06 and 11,312.72 is: 15,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.56 : 27,963.06 = 11,312.72 : x
  2. Step 2: Convert to fraction form
    20,265.56/27,963.06 = 11,312.72/x
  3. Step 3: Cross multiply
    20,265.56x = 27,963.06 × 11,312.72
  4. Step 4: Simplify right side
    20,265.56x = 316,338,268.12
  5. Step 5: Solve for x
    x = 316,338,268.12/20,265.56
  6. Step 6: Final answer
    x = 15,609.65

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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.