Home / 31,503.42-43,455.48-18,748.04

Finding the Fourth Proportional to 31,503.42, 43,455.48 and 18,748.04

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Solution

The fourth proportional to 31,503.42, 43,455.48 and 18,748.04 is: 25,860.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503.42 : 43,455.48 = 18,748.04 : x
  2. Step 2: Convert to fraction form
    31,503.42/43,455.48 = 18,748.04/x
  3. Step 3: Cross multiply
    31,503.42x = 43,455.48 × 18,748.04
  4. Step 4: Simplify right side
    31,503.42x = 814,704,859.98
  5. Step 5: Solve for x
    x = 814,704,859.98/31,503.42
  6. Step 6: Final answer
    x = 25,860.84

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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.