Home / 20,281.24-30,425.46-9,187.48

Finding the Fourth Proportional to 20,281.24, 30,425.46 and 9,187.48

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Solution

The fourth proportional to 20,281.24, 30,425.46 and 9,187.48 is: 13,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,281.24 : 30,425.46 = 9,187.48 : x
  2. Step 2: Convert to fraction form
    20,281.24/30,425.46 = 9,187.48/x
  3. Step 3: Cross multiply
    20,281.24x = 30,425.46 × 9,187.48
  4. Step 4: Simplify right side
    20,281.24x = 279,533,305.24
  5. Step 5: Solve for x
    x = 279,533,305.24/20,281.24
  6. Step 6: Final answer
    x = 13,782.85

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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.