Home / 31,611.80-43,623.91-17,271.57

Finding the Fourth Proportional to 31,611.80, 43,623.91 and 17,271.57

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Solution

The fourth proportional to 31,611.80, 43,623.91 and 17,271.57 is: 23,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,611.80 : 43,623.91 = 17,271.57 : x
  2. Step 2: Convert to fraction form
    31,611.80/43,623.91 = 17,271.57/x
  3. Step 3: Cross multiply
    31,611.80x = 43,623.91 × 17,271.57
  4. Step 4: Simplify right side
    31,611.80x = 753,453,600.42
  5. Step 5: Solve for x
    x = 753,453,600.42/31,611.80
  6. Step 6: Final answer
    x = 23,834.57

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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.