Home / 20,268.83-27,970.72-11,316.48

Finding the Fourth Proportional to 20,268.83, 27,970.72 and 11,316.48

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Solution

The fourth proportional to 20,268.83, 27,970.72 and 11,316.48 is: 15,616.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,268.83 : 27,970.72 = 11,316.48 : x
  2. Step 2: Convert to fraction form
    20,268.83/27,970.72 = 11,316.48/x
  3. Step 3: Cross multiply
    20,268.83x = 27,970.72 × 11,316.48
  4. Step 4: Simplify right side
    20,268.83x = 316,529,960.28
  5. Step 5: Solve for x
    x = 316,529,960.28/20,268.83
  6. Step 6: Final answer
    x = 15,616.59

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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.