Home / 31,669.68-47,511.72-16,870.80

Finding the Fourth Proportional to 31,669.68, 47,511.72 and 16,870.80

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Solution

The fourth proportional to 31,669.68, 47,511.72 and 16,870.80 is: 25,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,669.68 : 47,511.72 = 16,870.80 : x
  2. Step 2: Convert to fraction form
    31,669.68/47,511.72 = 16,870.80/x
  3. Step 3: Cross multiply
    31,669.68x = 47,511.72 × 16,870.80
  4. Step 4: Simplify right side
    31,669.68x = 801,560,725.78
  5. Step 5: Solve for x
    x = 801,560,725.78/31,669.68
  6. Step 6: Final answer
    x = 25,310.04

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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.