Home / 20,694.31-31,017.16-9,577.51

Finding the Fourth Proportional to 20,694.31, 31,017.16 and 9,577.51

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Solution

The fourth proportional to 20,694.31, 31,017.16 and 9,577.51 is: 14,355.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.31 : 31,017.16 = 9,577.51 : x
  2. Step 2: Convert to fraction form
    20,694.31/31,017.16 = 9,577.51/x
  3. Step 3: Cross multiply
    20,694.31x = 31,017.16 × 9,577.51
  4. Step 4: Simplify right side
    20,694.31x = 297,067,160.07
  5. Step 5: Solve for x
    x = 297,067,160.07/20,694.31
  6. Step 6: Final answer
    x = 14,355.02

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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.