Home / 21,462.85-29,624.90-12,963.62

Finding the Fourth Proportional to 21,462.85, 29,624.90 and 12,963.62

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Solution

The fourth proportional to 21,462.85, 29,624.90 and 12,963.62 is: 17,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,462.85 : 29,624.90 = 12,963.62 : x
  2. Step 2: Convert to fraction form
    21,462.85/29,624.90 = 12,963.62/x
  3. Step 3: Cross multiply
    21,462.85x = 29,624.90 × 12,963.62
  4. Step 4: Simplify right side
    21,462.85x = 384,045,733.20
  5. Step 5: Solve for x
    x = 384,045,733.20/21,462.85
  6. Step 6: Final answer
    x = 17,893.51

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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.