Home / 31,576.94-43,579.16-18,156.05

Finding the Fourth Proportional to 31,576.94, 43,579.16 and 18,156.05

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Solution

The fourth proportional to 31,576.94, 43,579.16 and 18,156.05 is: 25,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,576.94 : 43,579.16 = 18,156.05 : x
  2. Step 2: Convert to fraction form
    31,576.94/43,579.16 = 18,156.05/x
  3. Step 3: Cross multiply
    31,576.94x = 43,579.16 × 18,156.05
  4. Step 4: Simplify right side
    31,576.94x = 791,225,432.88
  5. Step 5: Solve for x
    x = 791,225,432.88/31,576.94
  6. Step 6: Final answer
    x = 25,057.07

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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.