Home / 20,963.08-28,927.76-12,008.53

Finding the Fourth Proportional to 20,963.08, 28,927.76 and 12,008.53

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Solution

The fourth proportional to 20,963.08, 28,927.76 and 12,008.53 is: 16,571.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.08 : 28,927.76 = 12,008.53 : x
  2. Step 2: Convert to fraction form
    20,963.08/28,927.76 = 12,008.53/x
  3. Step 3: Cross multiply
    20,963.08x = 28,927.76 × 12,008.53
  4. Step 4: Simplify right side
    20,963.08x = 347,379,873.79
  5. Step 5: Solve for x
    x = 347,379,873.79/20,963.08
  6. Step 6: Final answer
    x = 16,571.03

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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.