Home / 20,887.35-31,337.52-6,847.50

Finding the Fourth Proportional to 20,887.35, 31,337.52 and 6,847.50

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Solution

The fourth proportional to 20,887.35, 31,337.52 and 6,847.50 is: 10,273.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887.35 : 31,337.52 = 6,847.50 : x
  2. Step 2: Convert to fraction form
    20,887.35/31,337.52 = 6,847.50/x
  3. Step 3: Cross multiply
    20,887.35x = 31,337.52 × 6,847.50
  4. Step 4: Simplify right side
    20,887.35x = 214,583,668.20
  5. Step 5: Solve for x
    x = 214,583,668.20/20,887.35
  6. Step 6: Final answer
    x = 10,273.38

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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.