Home / 31,751.06-43,818.45-18,324.77

Finding the Fourth Proportional to 31,751.06, 43,818.45 and 18,324.77

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Solution

The fourth proportional to 31,751.06, 43,818.45 and 18,324.77 is: 25,289.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,751.06 : 43,818.45 = 18,324.77 : x
  2. Step 2: Convert to fraction form
    31,751.06/43,818.45 = 18,324.77/x
  3. Step 3: Cross multiply
    31,751.06x = 43,818.45 × 18,324.77
  4. Step 4: Simplify right side
    31,751.06x = 802,963,018.01
  5. Step 5: Solve for x
    x = 802,963,018.01/31,751.06
  6. Step 6: Final answer
    x = 25,289.33

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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.