Home / 20,732.69-28,602.96-12,761.08

Finding the Fourth Proportional to 20,732.69, 28,602.96 and 12,761.08

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Solution

The fourth proportional to 20,732.69, 28,602.96 and 12,761.08 is: 17,605.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.69 : 28,602.96 = 12,761.08 : x
  2. Step 2: Convert to fraction form
    20,732.69/28,602.96 = 12,761.08/x
  3. Step 3: Cross multiply
    20,732.69x = 28,602.96 × 12,761.08
  4. Step 4: Simplify right side
    20,732.69x = 365,004,541.44
  5. Step 5: Solve for x
    x = 365,004,541.44/20,732.69
  6. Step 6: Final answer
    x = 17,605.26

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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.