Home / 28,399.85-42,599.27-8,409.24

Finding the Fourth Proportional to 28,399.85, 42,599.27 and 8,409.24

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Solution

The fourth proportional to 28,399.85, 42,599.27 and 8,409.24 is: 12,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,399.85 : 42,599.27 = 8,409.24 : x
  2. Step 2: Convert to fraction form
    28,399.85/42,599.27 = 8,409.24/x
  3. Step 3: Cross multiply
    28,399.85x = 42,599.27 × 8,409.24
  4. Step 4: Simplify right side
    28,399.85x = 358,227,443.21
  5. Step 5: Solve for x
    x = 358,227,443.21/28,399.85
  6. Step 6: Final answer
    x = 12,613.71

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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.