Home / 21,152.64-29,176.96-16,669.44

Finding the Fourth Proportional to 21,152.64, 29,176.96 and 16,669.44

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Solution

The fourth proportional to 21,152.64, 29,176.96 and 16,669.44 is: 22,993.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.64 : 29,176.96 = 16,669.44 : x
  2. Step 2: Convert to fraction form
    21,152.64/29,176.96 = 16,669.44/x
  3. Step 3: Cross multiply
    21,152.64x = 29,176.96 × 16,669.44
  4. Step 4: Simplify right side
    21,152.64x = 486,363,584.10
  5. Step 5: Solve for x
    x = 486,363,584.10/21,152.64
  6. Step 6: Final answer
    x = 22,993.04

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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.