Home / 20,963.54-28,925.87-12,008.99

Finding the Fourth Proportional to 20,963.54, 28,925.87 and 12,008.99

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Solution

The fourth proportional to 20,963.54, 28,925.87 and 12,008.99 is: 16,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,963.54 : 28,925.87 = 12,008.99 : x
  2. Step 2: Convert to fraction form
    20,963.54/28,925.87 = 12,008.99/x
  3. Step 3: Cross multiply
    20,963.54x = 28,925.87 × 12,008.99
  4. Step 4: Simplify right side
    20,963.54x = 347,370,278.90
  5. Step 5: Solve for x
    x = 347,370,278.90/20,963.54
  6. Step 6: Final answer
    x = 16,570.21

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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.