Home / 21,621.60-29,824.38-16,577.64

Finding the Fourth Proportional to 21,621.60, 29,824.38 and 16,577.64

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Solution

The fourth proportional to 21,621.60, 29,824.38 and 16,577.64 is: 22,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,621.60 : 29,824.38 = 16,577.64 : x
  2. Step 2: Convert to fraction form
    21,621.60/29,824.38 = 16,577.64/x
  3. Step 3: Cross multiply
    21,621.60x = 29,824.38 × 16,577.64
  4. Step 4: Simplify right side
    21,621.60x = 494,417,834.86
  5. Step 5: Solve for x
    x = 494,417,834.86/21,621.60
  6. Step 6: Final answer
    x = 22,866.85

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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.