Home / 30,209.28-45,297.18-12,435.18

Finding the Fourth Proportional to 30,209.28, 45,297.18 and 12,435.18

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Solution

The fourth proportional to 30,209.28, 45,297.18 and 12,435.18 is: 18,645.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.28 : 45,297.18 = 12,435.18 : x
  2. Step 2: Convert to fraction form
    30,209.28/45,297.18 = 12,435.18/x
  3. Step 3: Cross multiply
    30,209.28x = 45,297.18 × 12,435.18
  4. Step 4: Simplify right side
    30,209.28x = 563,278,586.79
  5. Step 5: Solve for x
    x = 563,278,586.79/30,209.28
  6. Step 6: Final answer
    x = 18,645.88

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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.