Home / 20,327.94-28,042.74-12,770.46

Finding the Fourth Proportional to 20,327.94, 28,042.74 and 12,770.46

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Solution

The fourth proportional to 20,327.94, 28,042.74 and 12,770.46 is: 17,617.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.94 : 28,042.74 = 12,770.46 : x
  2. Step 2: Convert to fraction form
    20,327.94/28,042.74 = 12,770.46/x
  3. Step 3: Cross multiply
    20,327.94x = 28,042.74 × 12,770.46
  4. Step 4: Simplify right side
    20,327.94x = 358,118,689.46
  5. Step 5: Solve for x
    x = 358,118,689.46/20,327.94
  6. Step 6: Final answer
    x = 17,617.07

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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.