Home / 30,789.28-42,486.68-17,363.84

Finding the Fourth Proportional to 30,789.28, 42,486.68 and 17,363.84

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Solution

The fourth proportional to 30,789.28, 42,486.68 and 17,363.84 is: 23,960.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,789.28 : 42,486.68 = 17,363.84 : x
  2. Step 2: Convert to fraction form
    30,789.28/42,486.68 = 17,363.84/x
  3. Step 3: Cross multiply
    30,789.28x = 42,486.68 × 17,363.84
  4. Step 4: Simplify right side
    30,789.28x = 737,731,913.65
  5. Step 5: Solve for x
    x = 737,731,913.65/30,789.28
  6. Step 6: Final answer
    x = 23,960.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.