Home / 21,232.60-29,296.72-12,276.84

Finding the Fourth Proportional to 21,232.60, 29,296.72 and 12,276.84

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Solution

The fourth proportional to 21,232.60, 29,296.72 and 12,276.84 is: 16,939.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,232.60 : 29,296.72 = 12,276.84 : x
  2. Step 2: Convert to fraction form
    21,232.60/29,296.72 = 12,276.84/x
  3. Step 3: Cross multiply
    21,232.60x = 29,296.72 × 12,276.84
  4. Step 4: Simplify right side
    21,232.60x = 359,671,143.96
  5. Step 5: Solve for x
    x = 359,671,143.96/21,232.60
  6. Step 6: Final answer
    x = 16,939.57

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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.