Home / 30,808.03-42,525.98-18,232.75

Finding the Fourth Proportional to 30,808.03, 42,525.98 and 18,232.75

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Solution

The fourth proportional to 30,808.03, 42,525.98 and 18,232.75 is: 25,167.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,808.03 : 42,525.98 = 18,232.75 : x
  2. Step 2: Convert to fraction form
    30,808.03/42,525.98 = 18,232.75/x
  3. Step 3: Cross multiply
    30,808.03x = 42,525.98 × 18,232.75
  4. Step 4: Simplify right side
    30,808.03x = 775,365,561.85
  5. Step 5: Solve for x
    x = 775,365,561.85/30,808.03
  6. Step 6: Final answer
    x = 25,167.64

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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.