Home / 20,537.68-28,342.05-11,106.34

Finding the Fourth Proportional to 20,537.68, 28,342.05 and 11,106.34

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Solution

The fourth proportional to 20,537.68, 28,342.05 and 11,106.34 is: 15,326.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.68 : 28,342.05 = 11,106.34 : x
  2. Step 2: Convert to fraction form
    20,537.68/28,342.05 = 11,106.34/x
  3. Step 3: Cross multiply
    20,537.68x = 28,342.05 × 11,106.34
  4. Step 4: Simplify right side
    20,537.68x = 314,776,443.60
  5. Step 5: Solve for x
    x = 314,776,443.60/20,537.68
  6. Step 6: Final answer
    x = 15,326.78

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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.