Home / 31,442.88-43,390.64-17,295.60

Finding the Fourth Proportional to 31,442.88, 43,390.64 and 17,295.60

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Solution

The fourth proportional to 31,442.88, 43,390.64 and 17,295.60 is: 23,867.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.88 : 43,390.64 = 17,295.60 : x
  2. Step 2: Convert to fraction form
    31,442.88/43,390.64 = 17,295.60/x
  3. Step 3: Cross multiply
    31,442.88x = 43,390.64 × 17,295.60
  4. Step 4: Simplify right side
    31,442.88x = 750,467,153.18
  5. Step 5: Solve for x
    x = 750,467,153.18/31,442.88
  6. Step 6: Final answer
    x = 23,867.63

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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.