Home / 22,880.00-31,558.13-20,997.66

Finding the Fourth Proportional to 22,880.00, 31,558.13 and 20,997.66

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Solution

The fourth proportional to 22,880.00, 31,558.13 and 20,997.66 is: 28,961.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,880.00 : 31,558.13 = 20,997.66 : x
  2. Step 2: Convert to fraction form
    22,880.00/31,558.13 = 20,997.66/x
  3. Step 3: Cross multiply
    22,880.00x = 31,558.13 × 20,997.66
  4. Step 4: Simplify right side
    22,880.00x = 662,646,778.99
  5. Step 5: Solve for x
    x = 662,646,778.99/22,880.00
  6. Step 6: Final answer
    x = 28,961.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.