Home / 20,655.93-28,504.26-11,702.91

Finding the Fourth Proportional to 20,655.93, 28,504.26 and 11,702.91

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Solution

The fourth proportional to 20,655.93, 28,504.26 and 11,702.91 is: 16,149.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,655.93 : 28,504.26 = 11,702.91 : x
  2. Step 2: Convert to fraction form
    20,655.93/28,504.26 = 11,702.91/x
  3. Step 3: Cross multiply
    20,655.93x = 28,504.26 × 11,702.91
  4. Step 4: Simplify right side
    20,655.93x = 333,582,789.40
  5. Step 5: Solve for x
    x = 333,582,789.40/20,655.93
  6. Step 6: Final answer
    x = 16,149.49

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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.