Home / 20,577.56-28,397.25-11,146.33

Finding the Fourth Proportional to 20,577.56, 28,397.25 and 11,146.33

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Solution

The fourth proportional to 20,577.56, 28,397.25 and 11,146.33 is: 15,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.56 : 28,397.25 = 11,146.33 : x
  2. Step 2: Convert to fraction form
    20,577.56/28,397.25 = 11,146.33/x
  3. Step 3: Cross multiply
    20,577.56x = 28,397.25 × 11,146.33
  4. Step 4: Simplify right side
    20,577.56x = 316,525,048.60
  5. Step 5: Solve for x
    x = 316,525,048.60/20,577.56
  6. Step 6: Final answer
    x = 15,382.05

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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.