Home / 30,632.28-45,951.39-11,913.81

Finding the Fourth Proportional to 30,632.28, 45,951.39 and 11,913.81

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Solution

The fourth proportional to 30,632.28, 45,951.39 and 11,913.81 is: 17,871.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,632.28 : 45,951.39 = 11,913.81 : x
  2. Step 2: Convert to fraction form
    30,632.28/45,951.39 = 11,913.81/x
  3. Step 3: Cross multiply
    30,632.28x = 45,951.39 × 11,913.81
  4. Step 4: Simplify right side
    30,632.28x = 547,456,129.70
  5. Step 5: Solve for x
    x = 547,456,129.70/30,632.28
  6. Step 6: Final answer
    x = 17,871.87

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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.