Home / 20,435.99-28,204.27-12,476.52

Finding the Fourth Proportional to 20,435.99, 28,204.27 and 12,476.52

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Solution

The fourth proportional to 20,435.99, 28,204.27 and 12,476.52 is: 17,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.99 : 28,204.27 = 12,476.52 : x
  2. Step 2: Convert to fraction form
    20,435.99/28,204.27 = 12,476.52/x
  3. Step 3: Cross multiply
    20,435.99x = 28,204.27 × 12,476.52
  4. Step 4: Simplify right side
    20,435.99x = 351,891,107.55
  5. Step 5: Solve for x
    x = 351,891,107.55/20,435.99
  6. Step 6: Final answer
    x = 17,219.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.