Home / 31,852.80-47,721.60-28,166.40

Finding the Fourth Proportional to 31,852.80, 47,721.60 and 28,166.40

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Solution

The fourth proportional to 31,852.80, 47,721.60 and 28,166.40 is: 42,198.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,852.80 : 47,721.60 = 28,166.40 : x
  2. Step 2: Convert to fraction form
    31,852.80/47,721.60 = 28,166.40/x
  3. Step 3: Cross multiply
    31,852.80x = 47,721.60 × 28,166.40
  4. Step 4: Simplify right side
    31,852.80x = 1,344,145,674.24
  5. Step 5: Solve for x
    x = 1,344,145,674.24/31,852.80
  6. Step 6: Final answer
    x = 42,198.67

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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.