Home / 31,440.70-43,387.52-17,100.82

Finding the Fourth Proportional to 31,440.70, 43,387.52 and 17,100.82

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Solution

The fourth proportional to 31,440.70, 43,387.52 and 17,100.82 is: 23,598.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,440.70 : 43,387.52 = 17,100.82 : x
  2. Step 2: Convert to fraction form
    31,440.70/43,387.52 = 17,100.82/x
  3. Step 3: Cross multiply
    31,440.70x = 43,387.52 × 17,100.82
  4. Step 4: Simplify right side
    31,440.70x = 741,961,867.32
  5. Step 5: Solve for x
    x = 741,961,867.32/31,440.70
  6. Step 6: Final answer
    x = 23,598.77

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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.