Home / 20,793.81-31,190.72-5,800.32

Finding the Fourth Proportional to 20,793.81, 31,190.72 and 5,800.32

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Solution

The fourth proportional to 20,793.81, 31,190.72 and 5,800.32 is: 8,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.81 : 31,190.72 = 5,800.32 : x
  2. Step 2: Convert to fraction form
    20,793.81/31,190.72 = 5,800.32/x
  3. Step 3: Cross multiply
    20,793.81x = 31,190.72 × 5,800.32
  4. Step 4: Simplify right side
    20,793.81x = 180,916,155.17
  5. Step 5: Solve for x
    x = 180,916,155.17/20,793.81
  6. Step 6: Final answer
    x = 8,700.48

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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.