Home / 16,281.99-22,458.46-12,919.47

Finding the Fourth Proportional to 16,281.99, 22,458.46 and 12,919.47

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Solution

The fourth proportional to 16,281.99, 22,458.46 and 12,919.47 is: 17,820.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,281.99 : 22,458.46 = 12,919.47 : x
  2. Step 2: Convert to fraction form
    16,281.99/22,458.46 = 12,919.47/x
  3. Step 3: Cross multiply
    16,281.99x = 22,458.46 × 12,919.47
  4. Step 4: Simplify right side
    16,281.99x = 290,151,400.22
  5. Step 5: Solve for x
    x = 290,151,400.22/16,281.99
  6. Step 6: Final answer
    x = 17,820.39

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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.