Home / 20,537.41-28,341.52-11,105.95

Finding the Fourth Proportional to 20,537.41, 28,341.52 and 11,105.95

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Solution

The fourth proportional to 20,537.41, 28,341.52 and 11,105.95 is: 15,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.41 : 28,341.52 = 11,105.95 : x
  2. Step 2: Convert to fraction form
    20,537.41/28,341.52 = 11,105.95/x
  3. Step 3: Cross multiply
    20,537.41x = 28,341.52 × 11,105.95
  4. Step 4: Simplify right side
    20,537.41x = 314,759,504.04
  5. Step 5: Solve for x
    x = 314,759,504.04/20,537.41
  6. Step 6: Final answer
    x = 15,326.15

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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.