Home / 20,960.19-28,926.99-12,008.48

Finding the Fourth Proportional to 20,960.19, 28,926.99 and 12,008.48

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Solution

The fourth proportional to 20,960.19, 28,926.99 and 12,008.48 is: 16,572.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.19 : 28,926.99 = 12,008.48 : x
  2. Step 2: Convert to fraction form
    20,960.19/28,926.99 = 12,008.48/x
  3. Step 3: Cross multiply
    20,960.19x = 28,926.99 × 12,008.48
  4. Step 4: Simplify right side
    20,960.19x = 347,369,036.24
  5. Step 5: Solve for x
    x = 347,369,036.24/20,960.19
  6. Step 6: Final answer
    x = 16,572.80

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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.