Home / 22,431.30-30,948.30-12,998.04

Finding the Fourth Proportional to 22,431.30, 30,948.30 and 12,998.04

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Solution

The fourth proportional to 22,431.30, 30,948.30 and 12,998.04 is: 17,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,431.30 : 30,948.30 = 12,998.04 : x
  2. Step 2: Convert to fraction form
    22,431.30/30,948.30 = 12,998.04/x
  3. Step 3: Cross multiply
    22,431.30x = 30,948.30 × 12,998.04
  4. Step 4: Simplify right side
    22,431.30x = 402,267,241.33
  5. Step 5: Solve for x
    x = 402,267,241.33/22,431.30
  6. Step 6: Final answer
    x = 17,933.30

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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.