Home / 31,307.76-43,203.11-17,157.87

Finding the Fourth Proportional to 31,307.76, 43,203.11 and 17,157.87

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Solution

The fourth proportional to 31,307.76, 43,203.11 and 17,157.87 is: 23,676.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,307.76 : 43,203.11 = 17,157.87 : x
  2. Step 2: Convert to fraction form
    31,307.76/43,203.11 = 17,157.87/x
  3. Step 3: Cross multiply
    31,307.76x = 43,203.11 × 17,157.87
  4. Step 4: Simplify right side
    31,307.76x = 741,273,259.19
  5. Step 5: Solve for x
    x = 741,273,259.19/31,307.76
  6. Step 6: Final answer
    x = 23,676.98

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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.