Home / 31,506.72-43,478.93-18,080.09

Finding the Fourth Proportional to 31,506.72, 43,478.93 and 18,080.09

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Solution

The fourth proportional to 31,506.72, 43,478.93 and 18,080.09 is: 24,950.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,506.72 : 43,478.93 = 18,080.09 : x
  2. Step 2: Convert to fraction form
    31,506.72/43,478.93 = 18,080.09/x
  3. Step 3: Cross multiply
    31,506.72x = 43,478.93 × 18,080.09
  4. Step 4: Simplify right side
    31,506.72x = 786,102,704.91
  5. Step 5: Solve for x
    x = 786,102,704.91/31,506.72
  6. Step 6: Final answer
    x = 24,950.32

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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.