Home / 31,672.23-43,704.70-21,442.45

Finding the Fourth Proportional to 31,672.23, 43,704.70 and 21,442.45

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Solution

The fourth proportional to 31,672.23, 43,704.70 and 21,442.45 is: 29,588.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,672.23 : 43,704.70 = 21,442.45 : x
  2. Step 2: Convert to fraction form
    31,672.23/43,704.70 = 21,442.45/x
  3. Step 3: Cross multiply
    31,672.23x = 43,704.70 × 21,442.45
  4. Step 4: Simplify right side
    31,672.23x = 937,136,099.03
  5. Step 5: Solve for x
    x = 937,136,099.03/31,672.23
  6. Step 6: Final answer
    x = 29,588.57

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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.