Home / 20,784.24-28,672.26-15,110.19

Finding the Fourth Proportional to 20,784.24, 28,672.26 and 15,110.19

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Solution

The fourth proportional to 20,784.24, 28,672.26 and 15,110.19 is: 20,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,784.24 : 28,672.26 = 15,110.19 : x
  2. Step 2: Convert to fraction form
    20,784.24/28,672.26 = 15,110.19/x
  3. Step 3: Cross multiply
    20,784.24x = 28,672.26 × 15,110.19
  4. Step 4: Simplify right side
    20,784.24x = 433,243,296.33
  5. Step 5: Solve for x
    x = 433,243,296.33/20,784.24
  6. Step 6: Final answer
    x = 20,844.80

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Half scale
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Double scale
Find fourth proportional to 20,785.24, 28,673.64 and 15,111.19
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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.