Home / 20,417.27-30,617.99-7,935.65

Finding the Fourth Proportional to 20,417.27, 30,617.99 and 7,935.65

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Solution

The fourth proportional to 20,417.27, 30,617.99 and 7,935.65 is: 11,900.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.27 : 30,617.99 = 7,935.65 : x
  2. Step 2: Convert to fraction form
    20,417.27/30,617.99 = 7,935.65/x
  3. Step 3: Cross multiply
    20,417.27x = 30,617.99 × 7,935.65
  4. Step 4: Simplify right side
    20,417.27x = 242,973,459.58
  5. Step 5: Solve for x
    x = 242,973,459.58/20,417.27
  6. Step 6: Final answer
    x = 11,900.39

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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.