Home / 21,126.72-31,701.96-14,558.16

Finding the Fourth Proportional to 21,126.72, 31,701.96 and 14,558.16

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Solution

The fourth proportional to 21,126.72, 31,701.96 and 14,558.16 is: 21,845.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,126.72 : 31,701.96 = 14,558.16 : x
  2. Step 2: Convert to fraction form
    21,126.72/31,701.96 = 14,558.16/x
  3. Step 3: Cross multiply
    21,126.72x = 31,701.96 × 14,558.16
  4. Step 4: Simplify right side
    21,126.72x = 461,522,205.99
  5. Step 5: Solve for x
    x = 461,522,205.99/21,126.72
  6. Step 6: Final answer
    x = 21,845.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.