Home / 20,694.52-31,017.45-9,577.72

Finding the Fourth Proportional to 20,694.52, 31,017.45 and 9,577.72

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Solution

The fourth proportional to 20,694.52, 31,017.45 and 9,577.72 is: 14,355.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.52 : 31,017.45 = 9,577.72 : x
  2. Step 2: Convert to fraction form
    20,694.52/31,017.45 = 9,577.72/x
  3. Step 3: Cross multiply
    20,694.52x = 31,017.45 × 9,577.72
  4. Step 4: Simplify right side
    20,694.52x = 297,076,451.21
  5. Step 5: Solve for x
    x = 297,076,451.21/20,694.52
  6. Step 6: Final answer
    x = 14,355.32

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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.