Home / 20,488.05-28,276.23-11,537.33

Finding the Fourth Proportional to 20,488.05, 28,276.23 and 11,537.33

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Solution

The fourth proportional to 20,488.05, 28,276.23 and 11,537.33 is: 15,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.05 : 28,276.23 = 11,537.33 : x
  2. Step 2: Convert to fraction form
    20,488.05/28,276.23 = 11,537.33/x
  3. Step 3: Cross multiply
    20,488.05x = 28,276.23 × 11,537.33
  4. Step 4: Simplify right side
    20,488.05x = 326,232,055.28
  5. Step 5: Solve for x
    x = 326,232,055.28/20,488.05
  6. Step 6: Final answer
    x = 15,923.04

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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.