Home / 45,287.52-67,930.08-12,007.68

Finding the Fourth Proportional to 45,287.52, 67,930.08 and 12,007.68

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Solution

The fourth proportional to 45,287.52, 67,930.08 and 12,007.68 is: 18,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,287.52 : 67,930.08 = 12,007.68 : x
  2. Step 2: Convert to fraction form
    45,287.52/67,930.08 = 12,007.68/x
  3. Step 3: Cross multiply
    45,287.52x = 67,930.08 × 12,007.68
  4. Step 4: Simplify right side
    45,287.52x = 815,682,663.01
  5. Step 5: Solve for x
    x = 815,682,663.01/45,287.52
  6. Step 6: Final answer
    x = 18,011.20

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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.