Home / 21,293.72-29,385.30-11,862.26

Finding the Fourth Proportional to 21,293.72, 29,385.30 and 11,862.26

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Solution

The fourth proportional to 21,293.72, 29,385.30 and 11,862.26 is: 16,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.72 : 29,385.30 = 11,862.26 : x
  2. Step 2: Convert to fraction form
    21,293.72/29,385.30 = 11,862.26/x
  3. Step 3: Cross multiply
    21,293.72x = 29,385.30 × 11,862.26
  4. Step 4: Simplify right side
    21,293.72x = 348,576,068.78
  5. Step 5: Solve for x
    x = 348,576,068.78/21,293.72
  6. Step 6: Final answer
    x = 16,369.90

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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.