Home / 30,185.79-45,241.97-12,635.07

Finding the Fourth Proportional to 30,185.79, 45,241.97 and 12,635.07

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Solution

The fourth proportional to 30,185.79, 45,241.97 and 12,635.07 is: 18,937.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,185.79 : 45,241.97 = 12,635.07 : x
  2. Step 2: Convert to fraction form
    30,185.79/45,241.97 = 12,635.07/x
  3. Step 3: Cross multiply
    30,185.79x = 45,241.97 × 12,635.07
  4. Step 4: Simplify right side
    30,185.79x = 571,635,394.71
  5. Step 5: Solve for x
    x = 571,635,394.71/30,185.79
  6. Step 6: Final answer
    x = 18,937.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.