Home / 21,891.04-30,202.14-12,457.24

Finding the Fourth Proportional to 21,891.04, 30,202.14 and 12,457.24

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Solution

The fourth proportional to 21,891.04, 30,202.14 and 12,457.24 is: 17,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,891.04 : 30,202.14 = 12,457.24 : x
  2. Step 2: Convert to fraction form
    21,891.04/30,202.14 = 12,457.24/x
  3. Step 3: Cross multiply
    21,891.04x = 30,202.14 × 12,457.24
  4. Step 4: Simplify right side
    21,891.04x = 376,235,306.49
  5. Step 5: Solve for x
    x = 376,235,306.49/21,891.04
  6. Step 6: Final answer
    x = 17,186.73

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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.