Home / 21,576.03-29,769.12-12,625.74

Finding the Fourth Proportional to 21,576.03, 29,769.12 and 12,625.74

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Solution

The fourth proportional to 21,576.03, 29,769.12 and 12,625.74 is: 17,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,576.03 : 29,769.12 = 12,625.74 : x
  2. Step 2: Convert to fraction form
    21,576.03/29,769.12 = 12,625.74/x
  3. Step 3: Cross multiply
    21,576.03x = 29,769.12 × 12,625.74
  4. Step 4: Simplify right side
    21,576.03x = 375,857,169.15
  5. Step 5: Solve for x
    x = 375,857,169.15/21,576.03
  6. Step 6: Final answer
    x = 17,420.13

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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.