Home / 30,286.59-45,431.81-9,510.91

Finding the Fourth Proportional to 30,286.59, 45,431.81 and 9,510.91

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Solution

The fourth proportional to 30,286.59, 45,431.81 and 9,510.91 is: 14,266.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,286.59 : 45,431.81 = 9,510.91 : x
  2. Step 2: Convert to fraction form
    30,286.59/45,431.81 = 9,510.91/x
  3. Step 3: Cross multiply
    30,286.59x = 45,431.81 × 9,510.91
  4. Step 4: Simplify right side
    30,286.59x = 432,097,856.05
  5. Step 5: Solve for x
    x = 432,097,856.05/30,286.59
  6. Step 6: Final answer
    x = 14,266.97

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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.