Home / 20,417.33-30,618.07-7,935.71

Finding the Fourth Proportional to 20,417.33, 30,618.07 and 7,935.71

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Solution

The fourth proportional to 20,417.33, 30,618.07 and 7,935.71 is: 11,900.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.33 : 30,618.07 = 7,935.71 : x
  2. Step 2: Convert to fraction form
    20,417.33/30,618.07 = 7,935.71/x
  3. Step 3: Cross multiply
    20,417.33x = 30,618.07 × 7,935.71
  4. Step 4: Simplify right side
    20,417.33x = 242,975,951.35
  5. Step 5: Solve for x
    x = 242,975,951.35/20,417.33
  6. Step 6: Final answer
    x = 11,900.47

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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.