Home / 30,789.39-42,497.34-20,063.67

Finding the Fourth Proportional to 30,789.39, 42,497.34 and 20,063.67

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Solution

The fourth proportional to 30,789.39, 42,497.34 and 20,063.67 is: 27,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,789.39 : 42,497.34 = 20,063.67 : x
  2. Step 2: Convert to fraction form
    30,789.39/42,497.34 = 20,063.67/x
  3. Step 3: Cross multiply
    30,789.39x = 42,497.34 × 20,063.67
  4. Step 4: Simplify right side
    30,789.39x = 852,652,605.64
  5. Step 5: Solve for x
    x = 852,652,605.64/30,789.39
  6. Step 6: Final answer
    x = 27,693.07

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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.