Home / 21,500.92-29,671.36-12,069.52

Finding the Fourth Proportional to 21,500.92, 29,671.36 and 12,069.52

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Solution

The fourth proportional to 21,500.92, 29,671.36 and 12,069.52 is: 16,655.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,500.92 : 29,671.36 = 12,069.52 : x
  2. Step 2: Convert to fraction form
    21,500.92/29,671.36 = 12,069.52/x
  3. Step 3: Cross multiply
    21,500.92x = 29,671.36 × 12,069.52
  4. Step 4: Simplify right side
    21,500.92x = 358,119,072.95
  5. Step 5: Solve for x
    x = 358,119,072.95/21,500.92
  6. Step 6: Final answer
    x = 16,655.99

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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.