Home / 38,599.80-53,268.68-21,603.90

Finding the Fourth Proportional to 38,599.80, 53,268.68 and 21,603.90

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Solution

The fourth proportional to 38,599.80, 53,268.68 and 21,603.90 is: 29,813.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,599.80 : 53,268.68 = 21,603.90 : x
  2. Step 2: Convert to fraction form
    38,599.80/53,268.68 = 21,603.90/x
  3. Step 3: Cross multiply
    38,599.80x = 53,268.68 × 21,603.90
  4. Step 4: Simplify right side
    38,599.80x = 1,150,811,235.85
  5. Step 5: Solve for x
    x = 1,150,811,235.85/38,599.80
  6. Step 6: Final answer
    x = 29,813.92

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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.