Home / 20,763.38-31,156.01-9,084.80

Finding the Fourth Proportional to 20,763.38, 31,156.01 and 9,084.80

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Solution

The fourth proportional to 20,763.38, 31,156.01 and 9,084.80 is: 13,631.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,763.38 : 31,156.01 = 9,084.80 : x
  2. Step 2: Convert to fraction form
    20,763.38/31,156.01 = 9,084.80/x
  3. Step 3: Cross multiply
    20,763.38x = 31,156.01 × 9,084.80
  4. Step 4: Simplify right side
    20,763.38x = 283,046,074.22
  5. Step 5: Solve for x
    x = 283,046,074.22/20,763.38
  6. Step 6: Final answer
    x = 13,631.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.