Home / 45,007.79-67,519.89-15,428.61

Finding the Fourth Proportional to 45,007.79, 67,519.89 and 15,428.61

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Solution

The fourth proportional to 45,007.79, 67,519.89 and 15,428.61 is: 23,145.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,007.79 : 67,519.89 = 15,428.61 : x
  2. Step 2: Convert to fraction form
    45,007.79/67,519.89 = 15,428.61/x
  3. Step 3: Cross multiply
    45,007.79x = 67,519.89 × 15,428.61
  4. Step 4: Simplify right side
    45,007.79x = 1,041,738,245.40
  5. Step 5: Solve for x
    x = 1,041,738,245.40/45,007.79
  6. Step 6: Final answer
    x = 23,145.73

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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.