Home / 20,394.37-30,585.08-13,862.53

Finding the Fourth Proportional to 20,394.37, 30,585.08 and 13,862.53

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Solution

The fourth proportional to 20,394.37, 30,585.08 and 13,862.53 is: 20,789.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394.37 : 30,585.08 = 13,862.53 : x
  2. Step 2: Convert to fraction form
    20,394.37/30,585.08 = 13,862.53/x
  3. Step 3: Cross multiply
    20,394.37x = 30,585.08 × 13,862.53
  4. Step 4: Simplify right side
    20,394.37x = 423,986,589.05
  5. Step 5: Solve for x
    x = 423,986,589.05/20,394.37
  6. Step 6: Final answer
    x = 20,789.39

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1.5x scale

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.