Home / 21,669.42-29,901.60-12,236.16

Finding the Fourth Proportional to 21,669.42, 29,901.60 and 12,236.16

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Solution

The fourth proportional to 21,669.42, 29,901.60 and 12,236.16 is: 16,884.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,669.42 : 29,901.60 = 12,236.16 : x
  2. Step 2: Convert to fraction form
    21,669.42/29,901.60 = 12,236.16/x
  3. Step 3: Cross multiply
    21,669.42x = 29,901.60 × 12,236.16
  4. Step 4: Simplify right side
    21,669.42x = 365,880,761.86
  5. Step 5: Solve for x
    x = 365,880,761.86/21,669.42
  6. Step 6: Final answer
    x = 16,884.66

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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.