Home / 31,604.04-43,576.02-20,976.84

Finding the Fourth Proportional to 31,604.04, 43,576.02 and 20,976.84

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Solution

The fourth proportional to 31,604.04, 43,576.02 and 20,976.84 is: 28,923.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,604.04 : 43,576.02 = 20,976.84 : x
  2. Step 2: Convert to fraction form
    31,604.04/43,576.02 = 20,976.84/x
  3. Step 3: Cross multiply
    31,604.04x = 43,576.02 × 20,976.84
  4. Step 4: Simplify right side
    31,604.04x = 914,087,199.38
  5. Step 5: Solve for x
    x = 914,087,199.38/31,604.04
  6. Step 6: Final answer
    x = 28,923.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.