Home / 31,307.03-43,207.26-17,880.20

Finding the Fourth Proportional to 31,307.03, 43,207.26 and 17,880.20

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Solution

The fourth proportional to 31,307.03, 43,207.26 and 17,880.20 is: 24,676.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,307.03 : 43,207.26 = 17,880.20 : x
  2. Step 2: Convert to fraction form
    31,307.03/43,207.26 = 17,880.20/x
  3. Step 3: Cross multiply
    31,307.03x = 43,207.26 × 17,880.20
  4. Step 4: Simplify right side
    31,307.03x = 772,554,450.25
  5. Step 5: Solve for x
    x = 772,554,450.25/31,307.03
  6. Step 6: Final answer
    x = 24,676.71

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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.