Home / 21,029.89-29,020.03-12,541.63

Finding the Fourth Proportional to 21,029.89, 29,020.03 and 12,541.63

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Solution

The fourth proportional to 21,029.89, 29,020.03 and 12,541.63 is: 17,306.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.89 : 29,020.03 = 12,541.63 : x
  2. Step 2: Convert to fraction form
    21,029.89/29,020.03 = 12,541.63/x
  3. Step 3: Cross multiply
    21,029.89x = 29,020.03 × 12,541.63
  4. Step 4: Simplify right side
    21,029.89x = 363,958,478.85
  5. Step 5: Solve for x
    x = 363,958,478.85/21,029.89
  6. Step 6: Final answer
    x = 17,306.72

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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.