Home / 55,736.64-83,603.88-13,617

Finding the Fourth Proportional to 55,736.64, 83,603.88 and 13,617

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Solution

The fourth proportional to 55,736.64, 83,603.88 and 13,617 is: 20,425.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,736.64 : 83,603.88 = 13,617 : x
  2. Step 2: Convert to fraction form
    55,736.64/83,603.88 = 13,617/x
  3. Step 3: Cross multiply
    55,736.64x = 83,603.88 × 13,617
  4. Step 4: Simplify right side
    55,736.64x = 1,138,434,033.96
  5. Step 5: Solve for x
    x = 1,138,434,033.96/55,736.64
  6. Step 6: Final answer
    x = 20,425.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.