Home / 30,809.03-42,527.36-18,233.75

Finding the Fourth Proportional to 30,809.03, 42,527.36 and 18,233.75

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Solution

The fourth proportional to 30,809.03, 42,527.36 and 18,233.75 is: 25,169.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,809.03 : 42,527.36 = 18,233.75 : x
  2. Step 2: Convert to fraction form
    30,809.03/42,527.36 = 18,233.75/x
  3. Step 3: Cross multiply
    30,809.03x = 42,527.36 × 18,233.75
  4. Step 4: Simplify right side
    30,809.03x = 775,433,250.40
  5. Step 5: Solve for x
    x = 775,433,250.40/30,809.03
  6. Step 6: Final answer
    x = 25,169.03

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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.