Home / 21,245.50-29,304.30-12,741.76

Finding the Fourth Proportional to 21,245.50, 29,304.30 and 12,741.76

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Solution

The fourth proportional to 21,245.50, 29,304.30 and 12,741.76 is: 17,574.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,245.50 : 29,304.30 = 12,741.76 : x
  2. Step 2: Convert to fraction form
    21,245.50/29,304.30 = 12,741.76/x
  3. Step 3: Cross multiply
    21,245.50x = 29,304.30 × 12,741.76
  4. Step 4: Simplify right side
    21,245.50x = 373,388,357.57
  5. Step 5: Solve for x
    x = 373,388,357.57/21,245.50
  6. Step 6: Final answer
    x = 17,574.94

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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.