Home / 30,209.50-45,323.88-12,674.62

Finding the Fourth Proportional to 30,209.50, 45,323.88 and 12,674.62

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Solution

The fourth proportional to 30,209.50, 45,323.88 and 12,674.62 is: 19,015.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.50 : 45,323.88 = 12,674.62 : x
  2. Step 2: Convert to fraction form
    30,209.50/45,323.88 = 12,674.62/x
  3. Step 3: Cross multiply
    30,209.50x = 45,323.88 × 12,674.62
  4. Step 4: Simplify right side
    30,209.50x = 574,462,955.93
  5. Step 5: Solve for x
    x = 574,462,955.93/30,209.50
  6. Step 6: Final answer
    x = 19,015.97

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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.