Home / 30,601.81-45,901.80-10,866.56

Finding the Fourth Proportional to 30,601.81, 45,901.80 and 10,866.56

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Solution

The fourth proportional to 30,601.81, 45,901.80 and 10,866.56 is: 16,299.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,601.81 : 45,901.80 = 10,866.56 : x
  2. Step 2: Convert to fraction form
    30,601.81/45,901.80 = 10,866.56/x
  3. Step 3: Cross multiply
    30,601.81x = 45,901.80 × 10,866.56
  4. Step 4: Simplify right side
    30,601.81x = 498,794,778.56
  5. Step 5: Solve for x
    x = 498,794,778.56/30,601.81
  6. Step 6: Final answer
    x = 16,299.52

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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.