Home / 20,504.07-28,292.18-11,427.45

Finding the Fourth Proportional to 20,504.07, 28,292.18 and 11,427.45

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Solution

The fourth proportional to 20,504.07, 28,292.18 and 11,427.45 is: 15,767.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.07 : 28,292.18 = 11,427.45 : x
  2. Step 2: Convert to fraction form
    20,504.07/28,292.18 = 11,427.45/x
  3. Step 3: Cross multiply
    20,504.07x = 28,292.18 × 11,427.45
  4. Step 4: Simplify right side
    20,504.07x = 323,307,472.34
  5. Step 5: Solve for x
    x = 323,307,472.34/20,504.07
  6. Step 6: Final answer
    x = 15,767.97

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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.