Home / 21,710.10-29,961.54-12,150.95

Finding the Fourth Proportional to 21,710.10, 29,961.54 and 12,150.95

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Solution

The fourth proportional to 21,710.10, 29,961.54 and 12,150.95 is: 16,769.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,710.10 : 29,961.54 = 12,150.95 : x
  2. Step 2: Convert to fraction form
    21,710.10/29,961.54 = 12,150.95/x
  3. Step 3: Cross multiply
    21,710.10x = 29,961.54 × 12,150.95
  4. Step 4: Simplify right side
    21,710.10x = 364,061,024.66
  5. Step 5: Solve for x
    x = 364,061,024.66/21,710.10
  6. Step 6: Final answer
    x = 16,769.20

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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.