Home / 20,741.85-31,117.23-6,702.75

Finding the Fourth Proportional to 20,741.85, 31,117.23 and 6,702.75

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Solution

The fourth proportional to 20,741.85, 31,117.23 and 6,702.75 is: 10,055.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.85 : 31,117.23 = 6,702.75 : x
  2. Step 2: Convert to fraction form
    20,741.85/31,117.23 = 6,702.75/x
  3. Step 3: Cross multiply
    20,741.85x = 31,117.23 × 6,702.75
  4. Step 4: Simplify right side
    20,741.85x = 208,571,013.38
  5. Step 5: Solve for x
    x = 208,571,013.38/20,741.85
  6. Step 6: Final answer
    x = 10,055.56

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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.