Home / 31,725.09-47,576.70-10,661.85

Finding the Fourth Proportional to 31,725.09, 47,576.70 and 10,661.85

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Solution

The fourth proportional to 31,725.09, 47,576.70 and 10,661.85 is: 15,989.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,725.09 : 47,576.70 = 10,661.85 : x
  2. Step 2: Convert to fraction form
    31,725.09/47,576.70 = 10,661.85/x
  3. Step 3: Cross multiply
    31,725.09x = 47,576.70 × 10,661.85
  4. Step 4: Simplify right side
    31,725.09x = 507,255,638.90
  5. Step 5: Solve for x
    x = 507,255,638.90/31,725.09
  6. Step 6: Final answer
    x = 15,989.10

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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.