Home / 20,537.36-28,339.80-11,583.08

Finding the Fourth Proportional to 20,537.36, 28,339.80 and 11,583.08

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Solution

The fourth proportional to 20,537.36, 28,339.80 and 11,583.08 is: 15,983.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.36 : 28,339.80 = 11,583.08 : x
  2. Step 2: Convert to fraction form
    20,537.36/28,339.80 = 11,583.08/x
  3. Step 3: Cross multiply
    20,537.36x = 28,339.80 × 11,583.08
  4. Step 4: Simplify right side
    20,537.36x = 328,262,170.58
  5. Step 5: Solve for x
    x = 328,262,170.58/20,537.36
  6. Step 6: Final answer
    x = 15,983.66

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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.