Home / 21,211.92-29,273.28-14,511.60

Finding the Fourth Proportional to 21,211.92, 29,273.28 and 14,511.60

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Solution

The fourth proportional to 21,211.92, 29,273.28 and 14,511.60 is: 20,026.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,211.92 : 29,273.28 = 14,511.60 : x
  2. Step 2: Convert to fraction form
    21,211.92/29,273.28 = 14,511.60/x
  3. Step 3: Cross multiply
    21,211.92x = 29,273.28 × 14,511.60
  4. Step 4: Simplify right side
    21,211.92x = 424,802,130.05
  5. Step 5: Solve for x
    x = 424,802,130.05/21,211.92
  6. Step 6: Final answer
    x = 20,026.58

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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.