Home / 31,747.19-43,804.01-18,317.59

Finding the Fourth Proportional to 31,747.19, 43,804.01 and 18,317.59

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Solution

The fourth proportional to 31,747.19, 43,804.01 and 18,317.59 is: 25,274.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,747.19 : 43,804.01 = 18,317.59 : x
  2. Step 2: Convert to fraction form
    31,747.19/43,804.01 = 18,317.59/x
  3. Step 3: Cross multiply
    31,747.19x = 43,804.01 × 18,317.59
  4. Step 4: Simplify right side
    31,747.19x = 802,383,831.82
  5. Step 5: Solve for x
    x = 802,383,831.82/31,747.19
  6. Step 6: Final answer
    x = 25,274.17

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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.