Home / 20,694.59-31,017.58-9,577.80

Finding the Fourth Proportional to 20,694.59, 31,017.58 and 9,577.80

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Solution

The fourth proportional to 20,694.59, 31,017.58 and 9,577.80 is: 14,355.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.59 : 31,017.58 = 9,577.80 : x
  2. Step 2: Convert to fraction form
    20,694.59/31,017.58 = 9,577.80/x
  3. Step 3: Cross multiply
    20,694.59x = 31,017.58 × 9,577.80
  4. Step 4: Simplify right side
    20,694.59x = 297,080,177.72
  5. Step 5: Solve for x
    x = 297,080,177.72/20,694.59
  6. Step 6: Final answer
    x = 14,355.45

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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.