Home / 21,476.45-29,636.50-11,916.24

Finding the Fourth Proportional to 21,476.45, 29,636.50 and 11,916.24

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Solution

The fourth proportional to 21,476.45, 29,636.50 and 11,916.24 is: 16,443.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476.45 : 29,636.50 = 11,916.24 : x
  2. Step 2: Convert to fraction form
    21,476.45/29,636.50 = 11,916.24/x
  3. Step 3: Cross multiply
    21,476.45x = 29,636.50 × 11,916.24
  4. Step 4: Simplify right side
    21,476.45x = 353,155,646.76
  5. Step 5: Solve for x
    x = 353,155,646.76/21,476.45
  6. Step 6: Final answer
    x = 16,443.86

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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.