Home / 20,504.05-28,111.03-20,130.37

Finding the Fourth Proportional to 20,504.05, 28,111.03 and 20,130.37

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Solution

The fourth proportional to 20,504.05, 28,111.03 and 20,130.37 is: 27,598.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.05 : 28,111.03 = 20,130.37 : x
  2. Step 2: Convert to fraction form
    20,504.05/28,111.03 = 20,130.37/x
  3. Step 3: Cross multiply
    20,504.05x = 28,111.03 × 20,130.37
  4. Step 4: Simplify right side
    20,504.05x = 565,885,193.77
  5. Step 5: Solve for x
    x = 565,885,193.77/20,504.05
  6. Step 6: Final answer
    x = 27,598.71

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.