Home / 21,045.24-29,029.50-12,541.50

Finding the Fourth Proportional to 21,045.24, 29,029.50 and 12,541.50

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Solution

The fourth proportional to 21,045.24, 29,029.50 and 12,541.50 is: 17,299.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.24 : 29,029.50 = 12,541.50 : x
  2. Step 2: Convert to fraction form
    21,045.24/29,029.50 = 12,541.50/x
  3. Step 3: Cross multiply
    21,045.24x = 29,029.50 × 12,541.50
  4. Step 4: Simplify right side
    21,045.24x = 364,073,474.25
  5. Step 5: Solve for x
    x = 364,073,474.25/21,045.24
  6. Step 6: Final answer
    x = 17,299.56

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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.