Home / 20,296.16-28,026.54-12,755.60

Finding the Fourth Proportional to 20,296.16, 28,026.54 and 12,755.60

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Solution

The fourth proportional to 20,296.16, 28,026.54 and 12,755.60 is: 17,613.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.16 : 28,026.54 = 12,755.60 : x
  2. Step 2: Convert to fraction form
    20,296.16/28,026.54 = 12,755.60/x
  3. Step 3: Cross multiply
    20,296.16x = 28,026.54 × 12,755.60
  4. Step 4: Simplify right side
    20,296.16x = 357,495,333.62
  5. Step 5: Solve for x
    x = 357,495,333.62/20,296.16
  6. Step 6: Final answer
    x = 17,613.94

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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.