Home / 31,515.69-43,490.85-17,175.89

Finding the Fourth Proportional to 31,515.69, 43,490.85 and 17,175.89

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Solution

The fourth proportional to 31,515.69, 43,490.85 and 17,175.89 is: 23,702.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.69 : 43,490.85 = 17,175.89 : x
  2. Step 2: Convert to fraction form
    31,515.69/43,490.85 = 17,175.89/x
  3. Step 3: Cross multiply
    31,515.69x = 43,490.85 × 17,175.89
  4. Step 4: Simplify right side
    31,515.69x = 746,994,055.61
  5. Step 5: Solve for x
    x = 746,994,055.61/31,515.69
  6. Step 6: Final answer
    x = 23,702.29

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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.