Home / 31,346.76-43,258.53-17,918.31

Finding the Fourth Proportional to 31,346.76, 43,258.53 and 17,918.31

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Solution

The fourth proportional to 31,346.76, 43,258.53 and 17,918.31 is: 24,727.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,346.76 : 43,258.53 = 17,918.31 : x
  2. Step 2: Convert to fraction form
    31,346.76/43,258.53 = 17,918.31/x
  3. Step 3: Cross multiply
    31,346.76x = 43,258.53 × 17,918.31
  4. Step 4: Simplify right side
    31,346.76x = 775,119,687.33
  5. Step 5: Solve for x
    x = 775,119,687.33/31,346.76
  6. Step 6: Final answer
    x = 24,727.26

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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.