Home / 20,695.46-28,562.63-12,084.46

Finding the Fourth Proportional to 20,695.46, 28,562.63 and 12,084.46

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Solution

The fourth proportional to 20,695.46, 28,562.63 and 12,084.46 is: 16,678.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.46 : 28,562.63 = 12,084.46 : x
  2. Step 2: Convert to fraction form
    20,695.46/28,562.63 = 12,084.46/x
  3. Step 3: Cross multiply
    20,695.46x = 28,562.63 × 12,084.46
  4. Step 4: Simplify right side
    20,695.46x = 345,163,959.73
  5. Step 5: Solve for x
    x = 345,163,959.73/20,695.46
  6. Step 6: Final answer
    x = 16,678.25

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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.