Home / 21,184.53-29,231.33-12,230.34

Finding the Fourth Proportional to 21,184.53, 29,231.33 and 12,230.34

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Solution

The fourth proportional to 21,184.53, 29,231.33 and 12,230.34 is: 16,875.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.53 : 29,231.33 = 12,230.34 : x
  2. Step 2: Convert to fraction form
    21,184.53/29,231.33 = 12,230.34/x
  3. Step 3: Cross multiply
    21,184.53x = 29,231.33 × 12,230.34
  4. Step 4: Simplify right side
    21,184.53x = 357,509,043.40
  5. Step 5: Solve for x
    x = 357,509,043.40/21,184.53
  6. Step 6: Final answer
    x = 16,875.95

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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.