Home / 21,500.73-29,671.47-12,069.27

Finding the Fourth Proportional to 21,500.73, 29,671.47 and 12,069.27

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Solution

The fourth proportional to 21,500.73, 29,671.47 and 12,069.27 is: 16,655.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,500.73 : 29,671.47 = 12,069.27 : x
  2. Step 2: Convert to fraction form
    21,500.73/29,671.47 = 12,069.27/x
  3. Step 3: Cross multiply
    21,500.73x = 29,671.47 × 12,069.27
  4. Step 4: Simplify right side
    21,500.73x = 358,112,982.73
  5. Step 5: Solve for x
    x = 358,112,982.73/21,500.73
  6. Step 6: Final answer
    x = 16,655.85

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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.