Home / 21,406.68-29,551.32-16,103.52

Finding the Fourth Proportional to 21,406.68, 29,551.32 and 16,103.52

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Solution

The fourth proportional to 21,406.68, 29,551.32 and 16,103.52 is: 22,230.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406.68 : 29,551.32 = 16,103.52 : x
  2. Step 2: Convert to fraction form
    21,406.68/29,551.32 = 16,103.52/x
  3. Step 3: Cross multiply
    21,406.68x = 29,551.32 × 16,103.52
  4. Step 4: Simplify right side
    21,406.68x = 475,880,272.65
  5. Step 5: Solve for x
    x = 475,880,272.65/21,406.68
  6. Step 6: Final answer
    x = 22,230.46

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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.