Home / 31,735.12-43,799.15-18,303.77

Finding the Fourth Proportional to 31,735.12, 43,799.15 and 18,303.77

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Solution

The fourth proportional to 31,735.12, 43,799.15 and 18,303.77 is: 25,261.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,735.12 : 43,799.15 = 18,303.77 : x
  2. Step 2: Convert to fraction form
    31,735.12/43,799.15 = 18,303.77/x
  3. Step 3: Cross multiply
    31,735.12x = 43,799.15 × 18,303.77
  4. Step 4: Simplify right side
    31,735.12x = 801,689,567.80
  5. Step 5: Solve for x
    x = 801,689,567.80/31,735.12
  6. Step 6: Final answer
    x = 25,261.90

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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.