Home / 20,847.13-31,273.93-6,999.37

Finding the Fourth Proportional to 20,847.13, 31,273.93 and 6,999.37

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Solution

The fourth proportional to 20,847.13, 31,273.93 and 6,999.37 is: 10,500.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847.13 : 31,273.93 = 6,999.37 : x
  2. Step 2: Convert to fraction form
    20,847.13/31,273.93 = 6,999.37/x
  3. Step 3: Cross multiply
    20,847.13x = 31,273.93 × 6,999.37
  4. Step 4: Simplify right side
    20,847.13x = 218,897,807.42
  5. Step 5: Solve for x
    x = 218,897,807.42/20,847.13
  6. Step 6: Final answer
    x = 10,500.14

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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.