Home / 20,695.64-28,559.86-11,264.00

Finding the Fourth Proportional to 20,695.64, 28,559.86 and 11,264.00

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Solution

The fourth proportional to 20,695.64, 28,559.86 and 11,264.00 is: 15,544.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.64 : 28,559.86 = 11,264.00 : x
  2. Step 2: Convert to fraction form
    20,695.64/28,559.86 = 11,264.00/x
  3. Step 3: Cross multiply
    20,695.64x = 28,559.86 × 11,264.00
  4. Step 4: Simplify right side
    20,695.64x = 321,698,092.08
  5. Step 5: Solve for x
    x = 321,698,092.08/20,695.64
  6. Step 6: Final answer
    x = 15,544.25

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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.