Home / 20,302.08-28,017.48-11,227.56

Finding the Fourth Proportional to 20,302.08, 28,017.48 and 11,227.56

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Solution

The fourth proportional to 20,302.08, 28,017.48 and 11,227.56 is: 15,494.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.08 : 28,017.48 = 11,227.56 : x
  2. Step 2: Convert to fraction form
    20,302.08/28,017.48 = 11,227.56/x
  3. Step 3: Cross multiply
    20,302.08x = 28,017.48 × 11,227.56
  4. Step 4: Simplify right side
    20,302.08x = 314,567,937.75
  5. Step 5: Solve for x
    x = 314,567,937.75/20,302.08
  6. Step 6: Final answer
    x = 15,494.37

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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.