Home / 31,751.60-43,818.37-18,324.63

Finding the Fourth Proportional to 31,751.60, 43,818.37 and 18,324.63

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Solution

The fourth proportional to 31,751.60, 43,818.37 and 18,324.63 is: 25,288.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751.60 : 43,818.37 = 18,324.63 : x
  2. Step 2: Convert to fraction form
    31,751.60/43,818.37 = 18,324.63/x
  3. Step 3: Cross multiply
    31,751.60x = 43,818.37 × 18,324.63
  4. Step 4: Simplify right side
    31,751.60x = 802,955,371.64
  5. Step 5: Solve for x
    x = 802,955,371.64/31,751.60
  6. Step 6: Final answer
    x = 25,288.66

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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.