Home / 31,739.05-43,804.50-18,307.63

Finding the Fourth Proportional to 31,739.05, 43,804.50 and 18,307.63

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Solution

The fourth proportional to 31,739.05, 43,804.50 and 18,307.63 is: 25,267.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.05 : 43,804.50 = 18,307.63 : x
  2. Step 2: Convert to fraction form
    31,739.05/43,804.50 = 18,307.63/x
  3. Step 3: Cross multiply
    31,739.05x = 43,804.50 × 18,307.63
  4. Step 4: Simplify right side
    31,739.05x = 801,956,578.34
  5. Step 5: Solve for x
    x = 801,956,578.34/31,739.05
  6. Step 6: Final answer
    x = 25,267.19

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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.