Home / 30,209.10-45,299.07-12,674.22

Finding the Fourth Proportional to 30,209.10, 45,299.07 and 12,674.22

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Solution

The fourth proportional to 30,209.10, 45,299.07 and 12,674.22 is: 19,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.10 : 45,299.07 = 12,674.22 : x
  2. Step 2: Convert to fraction form
    30,209.10/45,299.07 = 12,674.22/x
  3. Step 3: Cross multiply
    30,209.10x = 45,299.07 × 12,674.22
  4. Step 4: Simplify right side
    30,209.10x = 574,130,378.98
  5. Step 5: Solve for x
    x = 574,130,378.98/30,209.10
  6. Step 6: Final answer
    x = 19,005.21

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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.