Home / 20,677.34-28,534.65-11,246.06

Finding the Fourth Proportional to 20,677.34, 28,534.65 and 11,246.06

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Solution

The fourth proportional to 20,677.34, 28,534.65 and 11,246.06 is: 15,519.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.34 : 28,534.65 = 11,246.06 : x
  2. Step 2: Convert to fraction form
    20,677.34/28,534.65 = 11,246.06/x
  3. Step 3: Cross multiply
    20,677.34x = 28,534.65 × 11,246.06
  4. Step 4: Simplify right side
    20,677.34x = 320,902,385.98
  5. Step 5: Solve for x
    x = 320,902,385.98/20,677.34
  6. Step 6: Final answer
    x = 15,519.52

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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.