Home / 20,903.22-31,357.77-6,113.25

Finding the Fourth Proportional to 20,903.22, 31,357.77 and 6,113.25

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Solution

The fourth proportional to 20,903.22, 31,357.77 and 6,113.25 is: 9,170.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.22 : 31,357.77 = 6,113.25 : x
  2. Step 2: Convert to fraction form
    20,903.22/31,357.77 = 6,113.25/x
  3. Step 3: Cross multiply
    20,903.22x = 31,357.77 × 6,113.25
  4. Step 4: Simplify right side
    20,903.22x = 191,697,887.45
  5. Step 5: Solve for x
    x = 191,697,887.45/20,903.22
  6. Step 6: Final answer
    x = 9,170.73

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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.