Home / 20,614.08-28,443.96-12,114.48

Finding the Fourth Proportional to 20,614.08, 28,443.96 and 12,114.48

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Solution

The fourth proportional to 20,614.08, 28,443.96 and 12,114.48 is: 16,715.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.08 : 28,443.96 = 12,114.48 : x
  2. Step 2: Convert to fraction form
    20,614.08/28,443.96 = 12,114.48/x
  3. Step 3: Cross multiply
    20,614.08x = 28,443.96 × 12,114.48
  4. Step 4: Simplify right side
    20,614.08x = 344,583,784.54
  5. Step 5: Solve for x
    x = 344,583,784.54/20,614.08
  6. Step 6: Final answer
    x = 16,715.94

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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.