Home / 20,316.92-28,036.26-11,818.60

Finding the Fourth Proportional to 20,316.92, 28,036.26 and 11,818.60

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Solution

The fourth proportional to 20,316.92, 28,036.26 and 11,818.60 is: 16,309.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.92 : 28,036.26 = 11,818.60 : x
  2. Step 2: Convert to fraction form
    20,316.92/28,036.26 = 11,818.60/x
  3. Step 3: Cross multiply
    20,316.92x = 28,036.26 × 11,818.60
  4. Step 4: Simplify right side
    20,316.92x = 331,349,272.35
  5. Step 5: Solve for x
    x = 331,349,272.35/20,316.92
  6. Step 6: Final answer
    x = 16,309.03

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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.