Home / 30,348.68-45,531.66-12,815.24

Finding the Fourth Proportional to 30,348.68, 45,531.66 and 12,815.24

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Solution

The fourth proportional to 30,348.68, 45,531.66 and 12,815.24 is: 19,226.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,348.68 : 45,531.66 = 12,815.24 : x
  2. Step 2: Convert to fraction form
    30,348.68/45,531.66 = 12,815.24/x
  3. Step 3: Cross multiply
    30,348.68x = 45,531.66 × 12,815.24
  4. Step 4: Simplify right side
    30,348.68x = 583,499,150.50
  5. Step 5: Solve for x
    x = 583,499,150.50/30,348.68
  6. Step 6: Final answer
    x = 19,226.51

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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.