Home / 20,036.69-30,046.83-8,935.79

Finding the Fourth Proportional to 20,036.69, 30,046.83 and 8,935.79

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Solution

The fourth proportional to 20,036.69, 30,046.83 and 8,935.79 is: 13,400.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,036.69 : 30,046.83 = 8,935.79 : x
  2. Step 2: Convert to fraction form
    20,036.69/30,046.83 = 8,935.79/x
  3. Step 3: Cross multiply
    20,036.69x = 30,046.83 × 8,935.79
  4. Step 4: Simplify right side
    20,036.69x = 268,492,012.81
  5. Step 5: Solve for x
    x = 268,492,012.81/20,036.69
  6. Step 6: Final answer
    x = 13,400.02

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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.