Home / 31,736.79-43,795.26-18,312.36

Finding the Fourth Proportional to 31,736.79, 43,795.26 and 18,312.36

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Solution

The fourth proportional to 31,736.79, 43,795.26 and 18,312.36 is: 25,270.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,736.79 : 43,795.26 = 18,312.36 : x
  2. Step 2: Convert to fraction form
    31,736.79/43,795.26 = 18,312.36/x
  3. Step 3: Cross multiply
    31,736.79x = 43,795.26 × 18,312.36
  4. Step 4: Simplify right side
    31,736.79x = 801,994,567.41
  5. Step 5: Solve for x
    x = 801,994,567.41/31,736.79
  6. Step 6: Final answer
    x = 25,270.19

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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.