Home / 31,202.70-46,808.10-15,415.80

Finding the Fourth Proportional to 31,202.70, 46,808.10 and 15,415.80

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Solution

The fourth proportional to 31,202.70, 46,808.10 and 15,415.80 is: 23,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,202.70 : 46,808.10 = 15,415.80 : x
  2. Step 2: Convert to fraction form
    31,202.70/46,808.10 = 15,415.80/x
  3. Step 3: Cross multiply
    31,202.70x = 46,808.10 × 15,415.80
  4. Step 4: Simplify right side
    31,202.70x = 721,584,307.98
  5. Step 5: Solve for x
    x = 721,584,307.98/31,202.70
  6. Step 6: Final answer
    x = 23,125.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.