Home / 18,030.30-27,042.71-6,340.78

Finding the Fourth Proportional to 18,030.30, 27,042.71 and 6,340.78

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Solution

The fourth proportional to 18,030.30, 27,042.71 and 6,340.78 is: 9,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,030.30 : 27,042.71 = 6,340.78 : x
  2. Step 2: Convert to fraction form
    18,030.30/27,042.71 = 6,340.78/x
  3. Step 3: Cross multiply
    18,030.30x = 27,042.71 × 6,340.78
  4. Step 4: Simplify right side
    18,030.30x = 171,471,912.48
  5. Step 5: Solve for x
    x = 171,471,912.48/18,030.30
  6. Step 6: Final answer
    x = 9,510.21

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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.